Originally Posted by
Sparkleleaf 
Then one weekend he just fell off the radar. Apparently feelings of him feeling overwhelmed boiled over.
One other thing, did he mention what happened that weekend? Did he relapse? Possibly. That's serious stuff right there and calls for getting back to and serious about his recovery. He obviously felt he was getting off his path of recovery and nothing can get in the way of that.
Again, doesn't stop your hurting but perhaps goes some way to explaining his actions.
It's not you.