Joshua, if we were in a healthy M I wouldn't mind of she went out. I don't think that is a sign of anything other than me loving her enough to let her have a good time away from the house once in a while. But she has told me that she likes going out at night to get away from me. Plus, she is going with a group of people including a guy she has texted 1500 times last month. Regardless of how much I base my self worth on my M, that still sucks.
victim, victim, victim. you're still letting what your W says bother you. stop it. get off the computer and enjoy time with your kids if she's already left. if she hasn't left yet, tell her you hope she has an enjoyable night out before she walks out the door, and act as if you really mean it.