What to do?

I moved in with my boyfriend about 3 months ago. We've been having sex like every 2 days and I'm good with that, but recently it's been like 5 days since we've had sex. I keep trying everything I know to make him horny like just wearing my thong or rubbing my ass up against him. Nothing! He keeps saying "I'm tired," "masturbate," "I'm too hot," "Don't pressure me" and I'm so upset I don't know what to do. Masturbating doesn't help because it's about the intimacy and not just about getting off. I'm just close to giving up on trying to get us to have sex.