This is really interesting. I no longer describe myself as a "feminist" because I feel that modern (or third-wave) feminism does women few favours - it seems to be about demanding the right to ape the worst behaviours of men - e.g. sleeping around, getting drunk and being aggressive and impulsive. I'm quite sure that Emmeline Pankhurst et al would be turning in their graves!
I do believe that men & women are equal, without doubt, but we are different, designed to complement each other. Having said all that, I can't have children due to suffering Primary Ovarian Failure in my teens, and I have had great difficulty in accepting that I am a "proper" woman.
How all this might relate to BPD, I'm not sure - it does seem to me that many young people, BPD or not, have a very fragile sense of identity which can't possibly be helped by engaging in casual sex (especially if deep down they want to say "no" but feel pressured into acting a certain way) and drinking too much!
To he OP - I would say that you are not defined by your past, and a good man will not judge you for it - we all do stuff when we're young which we might later regret. Be gentle on yourself!