The more I read this I can't shake the feeling that there are some insecurities.
Ppl saying she is better than the OP lols where is this coming from?
Just sounds like we are at surrender to "hot" women - that there is a need for an arm candy.
So socia value and inner game issues here
I can relate as I been there.
I think ppl have not also realised that males are free game too, we can easily go for other girls and that it is even playing field.
If ur relationship develops to a point where u don't have to think about this - then great!!
But for god sakes don't devalue urself (being insecure) about a girls roaming lol
As some posters have pointed out - they will stay or they will leave.
Prepare for both and you'll be right and also talk to her about it, ALSO if ur banging WLs then u don't have much moral ground to stand on if she is banging other ppl lols...