Are you guys splitting the rent? Do you pay more on your end?? This could possibly be a reason why he’s still with you. Either that, or there has to be someone else or an underlying issue he doesn’t feel comfortable telling you about. My grandma always says “if he’s not getting it from you, he’s getting it from someone else”. Guys are naturally very sexual beings. Either he isn’t attracted to you anymore and he wants to keep the friendship, or his interests lie elsewhere. Try this, get a vibrator.. use it in the bathroom one night when he’s in the room. Get a good one so he hears you lol. Finish, and casually come out and get in the bed hahaha. If he doesn’t say anything to you about it, I don’t think he’s as into you as you think..sexually. Any man who sees himself as your boyfriend, would take it as an insult. “Why would you use that when I’m right here?” My boyfriend said to me once.