Cheated by a close friend ?

Well this is a sad story, no sympathy needed as i have moved on. i once went to work for a guy and we became best of friends, we did everything tgether, we were like brothers really, I trusted him with my kids and my wife and didnt think of anything if came over when i wasnt there. He got frunk one day and asked me to pick him up so he didnt have to drive home, when i got there he told me he had been having an affair with my wife. I thought he was just drunk because i couldnt believe the two people I cared about the most in the world would hurt me like that. Well needless to say when i got back home and talked to the wife i found out it was true. I left her and quit my job. it was one of the lowest points in my life.I was devestaded, and went into a deep depression for about 6 months.