I am fairly sure I'm bpd, diagnosis or no. But I have to wonder if I have avpd traits for a number of reasons:
1, I was making a phone call once, and dialed the wrong number. I was so embarrassed that I hung up without a word.
2, A few years ago, a couple girls at the park invited me to come to their house sometime. Not only did I never take them up on it (though I wanted to), I never told anyone, either.
3, I hang back and try to be invisible during social events, even when I want to join in.
4, I long to be close to someone, but don't have the courage to talk to anyone. People have to talk to me before I can even get my mouth open.

How much of this sounds like bpd?