Conflicted Emotions: Reconnecting with an Old Friend

I saw an old friend yesterday toward whom I have very conflicted emotions. On the one hand, I have missed him greatly as we were best friends for years and were like siblings. On the other hand, I am furious at him for the way he’s handled fatherhood. This was the first time I’ve seen him in seven years. We spent about an hour and a half talking about current events and our shared past. For some reason, seeing him and talking with him has made the depression much much worse than it was yesterday! I’ve tried to talk about it with a friend, I’ve tried to reason my way through it with CBT, but I am just stuck! I’m looking for any and all suggestions on how to overcome this and come back from the cliff’s edge.