Well, first of all, you are not a loser. Your H is the one to violate your vows. You know you are doing the right thing by remaining faithful, even though you know that you have the Biblical right to D him on grounds of adultery. When the conclusion comes, either you will have him back or the separation will be made final. But, know this, you did not cause him to become unfaithful, that's his own choice. And my son who is only one year older than yours is full of sass and backtalk and criticism at times, so I would say yes it's normal. But he and I get along so well 99% of the time. I am sure you won't be the only parent who does the whole college search without their spouse, so take some comfort in that, you are not alone.