Thanks, NNP. It really isn't a matter of making a difference in a relationship with xH--because I'm not interested in continuing to bash my head against that wall. It's more a matter of understanding my own patterns, how I end up in similar situations, how to not end up there again should I ever find a romantic relationship again.
I am actually a rather friendly person--I chat with folks wherever I am, I have many positive relationships at work. It is simply a lonely period of my life, the degree of catastrophe in my life is simply off-putting to old friends (been in this spot before, after losting my second son--no matter how engaging one tries to be, it's just too much for friends to be comfortable around). It's a matter of baby steps, of continuing to get through one day at a time.
M60 H52 D20 M14 yrs OW-old gf from 1986 bomb-5/18/08 H filed for D-9/10/08 D final 4/24/09 xH remarried (not OW) 2012