The RP mindset is: A girlfriend that did anal with multiple guys in the past should do it with you as well, otherwise you should dump them. if she's been with 100 guys she's no ltr-material and so on. the classical BP-response is that you shouldn't judge people based on their past, meaning - you dont have to LTR them just dont call them sluts, etc.

I was very BP, confessed my love, wrote poems, love songs.. I always got shot down hard, so I probably won't ever do those things again, and as a result lean a bit towards the red side now. So obviously I did change, and I assume a lot of you RP-guys changed. a lot. why can't girls change?