I have to admit that I hate it. I can't tolerate watching them

I came in for work today just to find my bully chattering incessantly with my ex-friend (who started creating distance from me when my bully started to befriend her). They both paused to look at me then resumed their conversation. I didn't say hi. She didn't say hi. I just don't like greeting her anymore since she stopped greeting me around my bully. So I don't greet her even when my bully ain't around.
I have never understood why most of my friends end up preferring people that don't want to get along with me. This is exactly how I've lost friends throughout life.

It's been a whole ass year now and I still feel like breaking down and crying just because this was the first thing I saw this morning. I still haven't made peace with this. I've tried hard but some days it just bothers me too much.