Maybe you can find someone he can talk this out with. It's an obvious sore subject for him. There's more hurt going on here than what he wants to talk about with anyone close to him..you, friends, other family mbrs, etc. Just be there for him. Let him know you're there for him. Keep communication open between you. But I'd find him someone to talk to that's not going to make him feel judged.
Happy Holidays!
Ocean