If I can be honest, the same thing happened to me. I had one of the most amazing boyfriend for almost 6 years, but everytime I talked about my disorder he would just say Im being dramatic and to just be better and do stuff. I hesitated a lot about breaking up with him (I did a couple of times but he made me feel bad about it and we got back together) but when I finally did it he blocked me and just wouldnt talk to me. A couple of months went by and I found out he got marry and had a baby. So he really didnt care about me.

Sorry I just told you my life haha, I Needed to tell somebody.

My point is, if he really doesnt care about your depression and the idea of killing yourself, then how do you think he will care when you have to go through other things. Even the small ones.

It is difficult but I think I will be for the best if you just tell him that is over.