Boyfriend complains I dress inappropriate

I'm a casual kind of gal v neck shirts jeans. 
Wear light makeup or none at all while I'm at work. 
I dress the same as I have since we started being together 8 years ago! He complains that I dress inappropriate & I'm showing my boobs. 
Have you ever had to deal with a jealousy from your boyfriend / husband & how did you deal with it.