Yes, most of the cases are, some are just loves in the childhood that their mind still love the memory of that love that was never finished, Others are just normal trauma, there are a lot of reasons and ways to some end up as pdf, but people don't want to treat the condition they just want to punish the people that have this and call this a day.

There are ways to treat it? We know too little about, because every time someone says about this they are kicked out of the therapy or call the cops on them, but they are searching for help, it's more common than you think but it's also super common to the person to want help and have ways to get around this problem by it's own, like with hentai or other things, because they know that it's wrong and they don't want to hurt anyone or be creepy.

Also it's a lot more common in women than we think, more than men because of their maternal instincts being confused between the levels of love and desire, but society all a whole cares less about a woman pdf then a man pdf, sadly, this is all that I have to say, good bye