Break up?

Marianne • Marianne // Single // 16
Hi guys I need advice on how to get on with my life. On Sunday, my boyfriend broke up with me and now doesn't want to get back with me obviously. I want him back, of course. I have not been able to focus at college today because I've been so upset - I can't focus as all I can think about is him. 
The problem is his group of friends are my friends so we do still hang out.
My life is so boring and I just want to constantly message him but I know that annoys him.
Please help 😭😭