Emotionally drained

I feel like I’m not good enough anymore. No matter how much weight I lose, how much I exercise, how much I try to be the “go with the flow gf”. I just feel completely lost with him now. I try and dress sexy for him and I still see him checking out others all the time. And yes, looking is a normal thing. Even I do it from time to time. But no, he watches them, takes photos or videos sometimes when he thinks no one is looking. I love him, and our family. We’ve been together for years now and no he has never cheated or flirted with any girl. Our sex life has gone down tremendously, its like he’d rather watch porn or use The Chive then have sex more then once a week. I’m giving my all to someone and I’m only getting 50% back some days. I’m just drained.

It’s not like I’m unattractive but compared to all the other girls he looks at and ogles it makes me feel like I could be better. I use to be so confirdent and now its just gone.