First post - need some help. I've had (am having) a relationship with a girl who I think is either BPD or HPD. She knows she has issues and after 2 days of reading up on each subject, I think she is one or the other.
In summary - Known her 2 years, close for the last year after sleeping with her and have been in almost daily contact since. Never had a long distance relationship before but we're very close. But it's been hurtful when it shouldn't have been.
I've always known and thought there was something 'different' about her but last week she was in a mess over her current boyfriend and mentioned harming herself. This is what has prompted me to dig deeper and look on the internet for some reasoning.
We're very close and are supposed to be meeting in the next two months. I am married (please don't judge me on this - I know I've been stupid) but I just got so hooked on this girl (20 years younger).
But it's got to the point now where I'm the one wondering if I've got the issues.

I've tried to leave it alone for nearly a week because quite frankly, I'm crapping myself over what I'm involved with. Plus, her most recent picture on Facebook is one of her, in her (and her boyfriends) flat, showing her sexy stockings in a provocative pose and the photo was taken by an ex of hers. And I know she's tried to make me see it by messaging me on Facebook just to make me see the picture.
I'm starting to think I'm paranoid and it's me with the problem????
She text me this morning with a now quite normal 'odd' cryptic text and when I reacted the way I did (i.e. not particularly interested) I got the same old "you're strange" reaction.
It's hurting me on two levels. One, that I shouldn't be involved while I'm married anyway and two, I've been overall depressed with the relationship for the last year but can't break free from it.
Any thoughts, I think it's me who's going mad ?
Thanks