In need of serious help

So the story is, Wednesday night I started feeling very very depressed and I usually don't confide in people, but that night I decided I would confide in my boyfriend. But the thing is, whenever I do, my boyfriend usually would feel sad he won't be able to help and he ends up crying and such which will lead to me comforting him, rather than him comforting me. So that night the same thing happened, he replied with a "..." and went offline. The next morning before school started I broke down in front of him and then after that he started to be very distant ( we don't see each other often in school because he's a senior and I'm a junior) then after his replies started to become very short. Friday morning he told me he needed space, and so I did give him space. Then he said that he would meet me after school. So after school as I was looking for him he texts me saying he left, and it's because he his teacher cancelled his lesson, but my friends just told me they just saw him 10 minutes ago. So I told him that and I said "if you need more space, just say so" and he told me yes he needs more space. He told me he wants me to leave him alone for a while so he could "fix himself". He hasn't texted me or reached out to me since and it's Sunday now. It may not seem like a very long time but it's been long for me, I haven't been able to eat or sleep or focus on anything because ive been so worried. And I can't help but blame myself for this. I really don't know what to do..