Asd happens when there basically is a lack of comfort. It's like you meet a girl,you're attracted to her,she's attracted to you,then because you see signs of interest and attraction on her part,you go straight from "Hi,what's your name?",to trying to be sexual with her. And even if she allows it,while things are going on,or later when you've finished,she looks back at the whole interaction and realizes that she just had sex or got sexual with some guy who she really doesn't know. At that point,that's when the ASD or buyer's remorse sets in.
You can even do that with a girl who you've been dating for a while. If you just go to her place,have sex,then leave,go to her place,have sex,then leave,over and over again,she'll FEEL like she's just being used for sex. Then because the only time you two see each other is just for sex only,the fact that there's no talking with each other,no hanging out and doing things,or in other words,no hanging any sort emotional connection,just sex only will activate her ASD circuit. She'll feel dirty,like a slvt. So her ASD kicks in in order to prevent this feeling from happening. If you go to a bar,pick up a chick,take her home and sleep with her,yeah,you might get sex from her that night,but in the morning when she wakes up and looks over and sees this stranger in bed next to her,her ASD/buyer's remorse will kick in,then she'll tear the door off the hinges trying to get away from you. And it's not you she's running from,it's the dirty,slvtty feeling she gets from being around you.
I've had this happen to me before,and trust me,you'll feel just as uncomfortable as she does while she's trying to leave.
So if you're getting signs of ASD from a girl,even if she's your girlfriend,you need to hang out more with her. Go places,do things,talk to her,genuinally enjoy each other's presense. Do all that first,her ASD should subside.
She'll always have the ASD alarm within her waiting to be triggered,so if you set it off,that means that more than likely,you've moved too fast.