Should I leave him?

My bf has just been so angry lately. He’s been so dramatic saying he doesn’t trust anyone and how he’s stressed and under so much pressure. Everytime I try to be there for him he just pushes me away. It’s starting to get frustrating and annoying. I feel like the person your with should be able to always make you smile and get you in a better mood and I haven’t been doing that for him and honestly I don’t know how. Maybe we’re just not meant to be with eachother.