Not sexually satisfied in my marriage

I have been married for 3 years now, and we have a child together. I feel like I’m not sexually attracted to my husband anymore. I recently began working out and started paying attention to my body due to all the weight gain I had after my pregnancy. Now that I’ve seen a huge improvement, his lack of motivation on working on himself makes me very dissatisfied. Sex is not the same. I feel bad that I have to fake moan, just so he can finish doing his thing. I’ve realized that masturbating satisfies me more than having actual sex with him. I honestly see him like that goofy guy best friend 😭 am I really friend zoning my own husband? What is wrong with me? HELP 😪