He’s not that into me but I still like him a lot

So yes I know clearly myself that I am such a stupid guy for liking someone who doesn’t like me back. We met each other like months ago on a gay dating app and had sex. Never expected I’d really fall for him. But it’s common for fuck buds to evolve into couples right? I don’t know. Well the thing is I really like him a lot now and wanna see him or miss him all the time. But obviously he doesn’t like me that way. I mean the sex is still great. And when we meet on Sundays we have fun in bed and eat and go to movies together. Yet he’s never ever sent messages to me to check what or how I was doing if we are not together. Fuck I wanna end this sick relationship but I simply can’t. The mere idea of not being able to see him again hurts now. I am so fucked up.