Hard to say Stars, but when a man is serious, he's serious, and he lets you know about it, too. I wouldn't count on having the relationship work out in the long run, primarily because he's unstable. You're going to have to deal with that if you decide to wait for him to come back.

In the meantime, you need to be with friends and continue to have friendships
that will be healthy for you. You've suffered through his illness and you're too young to have to endure that for a long time.

Please get back into going out with friends and at least have interests in people so that you can put his memory away while he either gets well or you meet someone
who is stable and fall in love.

Take care.