I don't think one night stands are wrong, and as long as you are ok with that then have fun. I also don't think it is just a bpd thing, could possibly be your connection to someone temporarily, you are just feeling it, and as long as you feel you are being safe and taken care of during it then a girls gotta do what girls gotta do.

On the flip side though if it is you just settling then that makes me sad. Relationships can happen, they do all the time with a lot of us here. I mean if you want a relationship some day but feel you need to get better at interpersonal skills then one night stands are perfectly normal...eventually though, if a relationship is wanted then I wouldn't tell yourself you are doomed to living alone and having to settle for just the one nighters.