Worried about my relationship


So I’ve been best friends with this guy for years. We call each others family our own and spend the night. Last weekend he kissed me and said he loved me. I’ve been in love with him for 2 years. We acted like a couple all weekend. Kissing, cuddling, golosina hands, making out, kinda sorta blew him ANYWAYS he then went back to the mental hospital cus he lost his shit at his group therapy. He has really bad depression and anxiety and I try to help as much as possible but his isn’t caused by anything, which makes it even more difficult. I understand it fully, I know I can’t do anything but be there for him as he has for me. I really love him. But I’m worried about him when I move. He only has his phone on weekends and our parents said we could spend the night but I won’t always be there for him and I hate that. Help. Please. Below are pics of us that I like (ignore the black hair girl thatshis ex we still friends tho)