Unforgiveness

Can't say this was a biblical thought but it popped out anyway. My wife and I were walking though Wal-mart talking about forgiveness and unforgiveness when all of the sudden I said.

"You aren't worth my unforgiveness."

Course I didn't tell her that...we were talking about a situation we went through and that was what my response would have been to them. It just kind of popped out. We laughed hard at that one.

How do you deal with unforgiveness?