I don’t feel confident

Hi guys, don’t come for me please I’m just venting and seeking some genuine advice 💕. I’ve been dating an older man for about a year now, he’s 32 and I’m 24. He’s a personal trainer and that’s already something that’s a little intimidating for me. I’m healthy and fit however I’m not a model. Lately we haven’t been having sex at all and it’s pushed me to think maybe I’m not hot enough or something? I had a miscarriage back in November so I’ve been a little depressed. Anyways, so I’ve been working out like crazy hoping he’d notice and give me that affection I need. Nothing really seems to be helping so far and today I’m really struggling with my confidence levels. I’m tired of being rejected for sex and feeling unwanted. It’s not all about sex don’t get me wrong, some genuine conversations would literally be just good but every time I try he goes on about how he just wants to be on his social media after work.

I’m really trying to not be needy here but my confidence is taking a hit because I don’t feel like my own boyfriend wants me and no matter how many miles I run it doesn’t seem to help.

What should I do ?