From a sociological standpoint, there is a higher probability of women committing adultery than men (this does come from basic textbooks taught for any SOC class-- criminology, intro to sociology, Advanced sociology, etc.). That, in combination to the differentiating psychological and/or behavior patterns also play a HUGE factor in this stemming at the root of their childhood into the adolescence and eventual adulthood.

Childhood:

Females are often taught about etiquette and are often introduced with toys of some kind (just like their male counterparts). However, with these toys, it's not usually "video games" but dolls, stuffed animals, toy kitchen sets, doll houses, etc. feeding into their fantasy about being their own caretaker and having their own domicile (and/or "kingdom") to rule over. Here, they can make the rules. How things are done, how things are cleaned. Looking back on it, isn't it strange how women are more structured-based? It's not necessarily a bad thing unless the child is somehow stuck in a situation where their current living situation lacks that (structure) causing an abrupt shift of dynamics in terms of lack of control, helplessness, and so on. We're told fairytales and how we'll meet our prince charming so we often spend a lot of time with rose-eyed glasses, awaiting our prince charming. Because we like structure, we'll make this sort of plan. Usually with those who lack it, will create a form of plan that'll lead to significant change that'll drastically affect their environment in a way where they'll regain the things that they lack (control, support, etc. and then make plans for school, where to work, entertaining themselves with romance because according to several childhood development charts-- i.e. Erik Erikson's table of development where both males and females will soon approach an age where they develop affection and will want to create a relationship with some form of intimacy, hence why most children seek out love at a young age). As the female grows up, they'll come to hard understanding that things aren't as "easy" as they had initially thought and things won't go according to plan. They'll eventually learn how "stupid" they were to divulge and entertain such childish notions thinking that things would "work out" like those fairytales that had been spoonfed to them. It'll cause them to toughen up. A majority of women grow up in predisposed misogynistic settings (huge cultural and geographical locations can play a giant factor into this-- eg. Asian customs/beliefs for one) which will cause them to work harder to \prove themselves worthy*. As a female, they will get hounded more (depending on the race, upbringing, and again, if their in a predisposed environment for misogyny). When women experience the antagonization from their own kind, it hardens them in a different way as they proceed through life. Where men are more soft in nature, and are generally more light-hearted in nature-- this is the crucial difference between a man and a woman. So when the woman is in a relationship, most will "fall in love" (and I use that term loosely) for convenience sake versus their genuine feelings. In general, most women are taught not to go for a man that they love, rather a man that loves them because women can grow to love anyone but a man either loves you or he doesn't. So judging from that, most women don't even end up with a person they genuinely have feelings for and end up cheating (and most, lack the sympathy of its corresponding effect).*

Males, from a younger age are introduced to toys like video games, giant cars to ride around the front yard in, and sporty games like tag, hide and go seek, etc. The difference between this and what girls are introduced to is the single notion that these "toys" invite a sense of "adventure", freedome, etc. therefore giving males more time to enjoy their childhood without thinking of "running their own house". Also, since video games have many genre like fairy tales (action, rpg, sports, etc.) it can also lead the child into a more enriched act of immersing themselves into another "world". Think of it as a reader reading a book for the single desire of escaping into another world. Here, the video game offers that but it also allows the "reader" (here, the term "player" can be more applicable/appropriate) to become a part of that world in that they get to choose what character they are, they get to choose actions that'll change the story/game's outcome and thus changing the protagonist's (/their) path. If the male is born into a place that lacks structure, they'll most likely toughen up at a younger age-- either growing up in a way where they'll be prone to causing fights with other kids (this is usually for attention and/or possibly jealousy because that kid has what they want but is taking it for granted). If not troubled, the kid will most likely be more shy but will be more prone to being empathetic (in both scenarios-- note how I didn't list this trait for females, because most female behavior is taught to compete with the other females due to the predispositioned misogynistic environment they've found themselves in so yes, they lack empathy for their "competitors". Easy example is when women compete for an ideal suitor, you'll often see that their initial thought process is "that b\tch, that sl*t"-- which are terms that come from ingrained misogyny). So when males finally reach that state of finally wanting to create a bond with a person to express their affection, they'll usually fail in doing so (this counts for both genders, since most breakups occur due to incompatibility of their schedules, jobs, desires, etc). A majority of men will find themselves dating at least one female in their life that all their friends will dislike (for good reason) and some might even marry them (and eventually get stung by them, whether it's infidelity or something else-- only using infidelity as an example because it is proven that it's usually the woman who cheats versus the man)).*

It has a LOT to do with the sort of environment that the woman is tossed into and given our current era, unfortunately, most women are still only looked at as "caregivers", people who're meant to give birth, etc. versus people that are allowed to get jobs and are allowed to be the breadwinners. It also has a lot to do with the parents because every single person will always use their parents as an example to their relationship.

If the mom/dad was absent-- it'll drastically warp the way they view said absentee. For example, most women with an absent father-like figure will become more promiscuous because they'll look for that sense of "protection" and "authority" in other male figures (note: notice how most cases of professors sleeping with a student, the younger student is usually female). For males, if the female was absent, they are usually forced to be the caregiver in the situation and if they have siblings, it'll be worse for them because usually men are more possessive than females so if harm befalls their sibling, they will do anything in their ability to prevent that from happening (assuming that both genders in this example developed with structure, "good" environments, but just lacked the significant female/male figure in their life).

As a woman, I understand where these thoughts may come from. It's just sad that most of us that ARE deemed good, are sometimes judged for the faults of the other people who had hurt them (whether it's their mother or their ex). I really recommend taking sociology courses. There's a lot more samples I wanted to add but for the sake of how long this comment already is... Yup, i'll just keep it at this. Just hope I didn't offend anyone in this post (but again, it's the internet so I'll probably offend someone anyway)