I love my wife and don't ever want to break up our family, but I have no interest in having sex with her. We've been married 14 years, and over that span we've both become rather comfortable and let ourselves go a fair bit out of shape...she went that way probably 6-7 years ago, and I've just recently let go. I had hope that she'd at least attempt to keep herself in shape, even it it wasn't ideal but she didn't. Eventually I just gave up hope and stopped trying myself. I've recently resolved myself to not ever having a good sex life again. I know it hurts her feelings when I don't respond to her occasional advances, but I just can't bring myself to do it anymore.