I had many one night stands. A few in high school and then a lot more in college, lol. It was just like the others described it. I needed human contact and to feel that someone was into me. Didn't have to be loved, I just wanted to be liked. A few I regret, but most of them kept me sane too so I can't help but embrace the memory of them.
I understand and you are not a bad person. I think BPD does have something to do with it. It's not an excuse, but it's a reason.