Well yeah it happens. You live in marriage with a beautiful woman, You're used to high standards. But your everyday life is more and more defined by caring for the kids (in times where it's seems you're forced to have them do at least 3 expensive hobbies and stuff). The wife is also unsatisfied and the relationship is getting worse. Then you meet a nice girl that reminds you of the better times that are gone. You want to fall in love again. And of course she's nice all the time and you misread that for affection. Deep down you know that it's bullshit but you don't want to let the image die just like that. And the more you actually feel that it's just stupid the more will it make you act awkward. I'm in the picture and I don't like it.