Could use some support :(

It's been two months since my ex boyfriend dumped me. We were together for 2 1/2 years. One of the reasons why he left me and still bothering me till this day.. he said "your weight was always an issue for me"... I sometimes still cry. I don't know what to do. I've been very angry lately at everything.. is there any advice to help me move on? Is there anything I can do to kind of slap him in the face for what he said?