Why does he treat me like I'm made of China?

Hes always worrying im going to cut myself if im preparing food, (it happened once when I was distracted)
He refuses to let me carry anything he thinks is too heavy. (even a few plates)
If I try and open something he will rush over to take it from me and help.
The other day I felt a little dizzy he grabbed my shoulders and pinched me saying it was the only way to get through to me and I had to sit down.
He's always concerned to know if I've eaten or if someone's around to watch me if I feel ill. I can't even cough without him freaking out. He says he doesn't want a thing to happen to me.
I'm petite but not weak!