Do I like him or am I angry ?

Well basically here’s the story , I’ve had a crush on this asshole since the beginning of the year and I thought he liked me back so , I fell even harder and yes I know that he’s an asshole , I later found out that he had a girlfriend and tried getting over him little did I know that his best friend liked me , so I started liking his best friend back and we dated but we were more like friends long story short he’s my ex now ( a lot of drama and him breaking my trust more than once ) and now the guy I used to like at the beginning of the year broke up with his girlfriend when me and my ex started dating , he found out that I liked him and all of a sudden he’s interested in me he apparently thought that I’d never go for an asshole like him

When I see him I feel very warm and angry

It’s like lust and anger but intertwined.

I don’t know what to do .