It is not that you're crazy. You just might have a reserve against getting close to someone. You might want to see a therapist about this. We used to have sex everyday, but now it is only like once a week. You may be in the power struggle phase now.
People lose their passion.
The hormones die down and resentment takes over. You want to sit down and talk to your fianc and see if he is holding back some resentment. Schedule some play dates, fun, romance, go away for a weekend, dress sexy, dance together, and gaze into each other's eyes. Don't Break Up , I talk about how to bring back the sizzle. Don't take each other for granted.