That is what the process of dialog is for. You DO have to talk about how you feel about this. If you just bury those feelings, they will lead to resentments later. It doesn’t have to come all at once, but do your daily dialog, and make sure that it’s not just happy stuff you dialog over all the time, but get to the real issues. That is where healing comes from. Repressing your true feelings never helps, it only causes problems. And yes, even though you were separated, what he did was cheating. You can forgive him, but the issue is still there. It will have to be dealt with eventually. Dialog!!! Keep at it. You CAN work through this, but I promise it won’t be quick or easy. When you have done it, your relationship will be SO much stronger for it! It IS worth it to go through the pain of bringing up the hurts now, if it keeps them from exploding later.