Am I overreacting?

Allie

Since our daughter was born, it seems like my fiancée's sex drive has decreased dramatically. I try to initiate sex, and he'll say,"not now babe. Let's wait til later." So I'll wait until we're going to bed and try again. And then I get "it's late and I'm tired. I don't want to tonight." I know that I shouldn't let it bother me, but it does. I'm very self conscious about my body, so I'm constantly worrying that he doesn't find me sexy anymore. Any time I try to talk to him about it, he tells me that I'm beautiful and sexy and there's nothing wrong, and then he just shuts down. I don't know why it bothers me so much.... Am I overthinking and being dramatic?