Amazing (I'm dumbfounded!)

How can someone betray you and come home like everything is normal? How do I handle it? Trying to keep my mouth shut and keep the peace is going to harder than I thought! Even more insulting is that the same person relates to other people that they are "God-fearing" and teaches a Sunday school class! I feel like outing him to the pastor! I guess it's best to just keep praying and and let the Lord work on him. All this turmoil has resulted in my resistance to stay active in my church, mostly because I don't want to have to answer the questions of concern.