breaking up for both our sakes...selfish or selfless?

I recently broke up with my boyfriend because it was what I thought was the best thing to do for both of us. I suffer from panic attacks, OCD,  PTSD and have had clinical depression and anxiety since I was 13. I have been twice hospitalized for my depression in my 20's. Recently, I had a major depressive episode, and my boyfriend recently came out as an alcoholic. He has had issues with low self image, low self esteem and lack of self confidence and other tell tale signs of being depressed as well. Both he and I really only felt good around each other and my self esteem was based largely on how he treated me and how much he cared about me and loved me.  It was quite co-dependent on both our parts - I was starting to put my issues on the back burner and wanted to work on his well being, and he didn't go to AA while we were together. I started to go down hill more while we were dating, ignoring my own emotional well being. I felt that even though I love him, I love BOTH of us and myself enough to see that we both have emotional health issues in our lives that we need to address as individuals and work on ourselves and heal before it would be wise to be in a relationship. He said he understood, but at this time needed a clean break and we haven't spoken since. I heard through the grapevine he wants to go to AA and help himself and that "maybe someday" he & I can get back together. I feel guilty about breaking things off even though it was for the best interests of both of us at this time since we both are dealing with things we need to address for ourselves. Has anyone else been through this? Having the guilt and residual depression of breaking up with someone? Even though I did so we each can help ourselves and put our health first and seeing that being in a relationship right now is not what is best for us? I still feel like crap and like the bad guy that I ended up hurting him, but sometimes I think "maybe someday when we have our lives in order we can get back together?" I wonder if that is even healthy to think that way? Just wondering if anyone else has experienced this or something similar? Thank you so much for your help! :-)