ATTENTION: Question for chubby chasers?

Why is it when I met my husband I was over 300 pounds and my health was bad and my knees were worn out so I started to loose weight and he keeps making negative comments like damn you wasting away and I catch him looking at me with a frown and when I say sumtn about the way he looks at me now he says he's just playing I don't belive him. So I told him if he wants a big fat unhealthy woman he needs to get him one and leave me be cause I am 228 lbs now and I'm going to loose more I love my life and I want to be here as long as I can vfor my children! WAS I WRONG FOR SAYING THAT?