In my opinion, you two are not good for each other. If I were you, I'd steer clear of him. The turmoil in this relationship is not good for either one of you. You ended up overdosing and in the hospital. That is NOT good for you.

My son was in a similar situation with a girlfriend. He ended up in the hospital several times. He finally saw the light and distanced himself from the girl. He has been much more stable and happy since then.