Feel lost

I'm 25 my bf is 30. He suffers from depression and bipolar. We are long distance. It was like a light switch where things were different. He didn't text or call me. I was the one initiating things. When we did finally talk he told me he basically doesn't know if he wants to be with me but he cares about me, along with a bunch of other things. We talked and we still hung out that night after he told me all of that. But when he left that weekend it went back to the way it was. And I told myself I can't keep giving 100% if I'm getting nothing back. Especially being long distance. He didn't even text me yesterday. I have no fucking clue what's going on. And yes, people say talk to him. Well, I have and it got me no where. I care about him so much it hurts idk what to do