Yeah I feel like there are a ton of super weird responses trying to tip toe around cheater's feelings. If he had been banging a woman behind her back i really don't think these people would be being so empathetic.

If the guy was struggling to be out i feel bad for him about that. But he's also a grade A scumbag for cheating on what sounds like an incredibly caring and devoted girlfriend. There's nothing to "work out" here, he doesn't deserve her effort.