How to stop crying in front of him

I’m going to talk to my bf, if he even is my bf anymore, and I know 100% I’m going to start to cry in front of him about how I miss him and how I screwed things. I don’t want to cry bc I feel like he would be weirded out even tho he’s seen me as a mess crying before but would it be the end of the world if I do start to cry a lot ?? I’ve been really sad not talking to him and he means a lot to me and I just don’t want him to be weird about me crying or am I just overthinking and would crying be alright ..?