So do you ever

Get self conscious when your SO makes a comment such as 'Id give my left nut to fuck this chick' while talking about a woman from a band? Which it shouldn't be an issue because I say all the time how a certain actor or someone I see online is hot but I can't help the twinge of self consciousness, the 'Im not what he likes' because the singer was smaller in weight than me. I struggle with self esteem, I just can't help it, it makes me want to work out n make myself what he likes