Dear Abby advises a reader on how to deal with his wife's unintentional but hurtful behavior. Adobe Stock DEAR ABBY: My wife and I have been together for many years and have raised wonderful children. We have close friends, a beautiful home and, thankfully, our health. She’s my best friend, and the light and love of my life. We are, and have always been, happy together.  However, my wife is also a narcissist from a long line of narcissists. There’s no doubt that her belittling and dismissive behavior toward me is unintentional, but it is hurtful nonetheless. I have told her it’s demeaning, and I have tried to get her to modify her behavior by pointing out how it affects me.  She promises to be more aware but doesn’t appear to take my concerns to heart. None of the incidents are particularly serious, but the frequency with which they happen has taken its toll on me. I typically try not to react, but I’m not as successful at it as I’d like to be. I feel terrible after making her feel bad.…