What is the deal?

So, my husband and I have a great sex life, we also get along very well and never miss a day without telling each other how much we love each other.

Yesterday morning my husband was trying hard to get some morning sex. A little rubbing and petting on me, cuddling at first. Then he upped the ante and started kissing my neck. He was that thinking I was asleep, but i was a little bit awake. I wasn't feeling well. I had a terrible headache. So I responded by rolling over to face the opposite wall. He continued with the kissing. Finally, I said, "Baby, no" and remove his hand from my ass.

He has barely talked to me since. He won't look at me when I ask him what's wrong. He won't tell me anything. He just says "We will talk about it later." Then goes back to pretending I'm not even in the room.

I swear I can't figure out what I did wrong other than not feel like having sex. I mean, we do it like 5 times a week, give me a break. Is he acting childish over this or am I?

He has a history of being very sensitive. At this point I'm done trying to kiss his hurt feelings all the time. I can say something in a frustrated tone and he gets his boxers in a wad over it. I know I'm not as sensitive as him, but....really? Could his sudden cold behavior be because I didn't feel like having sex?