Ruined my relationship.

Usually the week before my period starts I get extra emotional, almost everything makes me cry, but when I comes to my boyfriend I get so upset, angry, and worked up. It’s like almost every month I try and breakup with him, I usually calm down and come to my senses before it actually happens. last night though I actually did it, I got so upset and emotional and broke up with him gave him all his things then when I got home I realized what I did and just cried. I know I love him and I DO want to be with him but this time every month I just get like this and don’t know what to do. On top of it I tried to explain to him I love and want to be with him and this just happens before my period and he didn’t care, said I’ll just do it again and he doesn’t want to keep going though that.

What can I do?