my almost pathological need for adoration and attention
"I need serious help."
In file A it might have been because the wife didn't like her husband enough to want to do the kink with him; in B it's because she didn't know she had the kink (or wasn't willing to face it) until the next lover came along, in File C because it's a kink she can only engage in with someone with whom she has an emotional distance (and so on and so on).
She doesn't want a stable relationship, she wants something a little more scripted.
If he never felt love for any woman before her, maybe that's a warning that he's just not a loving guy, and she's not going to get the adoration from him that she craves.
oh, I always have to edit myself so I don't say "hook up" meaning to meet up when talking to anyone under 35 or so!
"To make out" means to cuddle and to kiss, usually clothed.