DEAR ABBY: I’m engaged to a wonderful guy. He is very sweet, and I’m beyond thankful for him. I wouldn’t trade him for the world. But he has a character flaw that’s hard to ignore. When he gets frustrated, he screams out loud and takes a while to get himself together. When he lost his phone on a plane and was angry for hours, he pouted and scowled like the world had just ended. I have a very easy…