Oh dear 
I know it's a TAAT but I am now really sad (and paranoid) after reading the AIBU about if there's lots of people you've had difficulty with then you really need to wake up and see that it's yourself.
I don't speak to my mum, only got back in contact with my dad 3 years ago after not speaking to him for about 7 years (tbf most of the tension between me and my mum now is that I made up with my dad - I stopped speaking to him about 15 when his alcoholism hit rock bottom and he was continuously abusive in our home - my mum basically felt I 'let him away with it' and an already horrendous relationship just fell apart) and my SIL can't stand me to the point I'm not allowed in their home (although a very good relationship with my only sibling). For full disclosure, in the past ten years, I've fell out with 3 really good friends (one of who was the AIBU bride a few weeks ago who asked me to be a few shades less me).
I know everyone's perspectives are different and mine is obviously advantageous to myself so really, going by that thread it IS me (to an extent at least). I really recognised some of the traits on it - over sensitive but very little tact and has form for "cutting out" people who upset me.
My defence is very simply that I have awful self esteem combined with shit social skills (see no tact, despite how much I try). I know that I bury my head in the sand when I'm upset and when I'm pushed to the limit, I just hide. I just close entirely off. I can't deal with arguments so rather than having a 'reasonable' discussion about feelings I simply avoid people and won't deal with them again.
I don't know why I'm even posting as I'm not looking sympathy, probably just to vent as reading that thread really was just like the most horrible wake up call. Maybe I'm just looking a bit of advice on how to be less of a twat....