We never do anything together

Me(20) and my boyfriend(20) have been together for a year and 5 months, and he is a nice and patient guy, but I noticed that for the last 4 or 5 months we really did nothing fun together. We always hang out at my place, we are both students at the same college, and I moved to this city so I have my own place while he lives with his mom.

When we were friends we did all the fun activites together, we went to parties, bars, movies, we hanged out a lot outdoors. Now it's just sitting on my couch and watching videos. I noticed that he hangs out with his friends and does all the things we used to do so, and i know he needs his man time, but i'm pretty sure that in that friend group there are also some girls, and i'm never invited. I did meet his friends, and he met mine, but i always make sure to involve him any time i go out with my friends, while he NEVER does the same.

We also don't really share the same interests, our conversations are always the same banal stuff like wyd, how did your day go or what are you up to today.

Another thins that i absolutely hate is that he spends so much time on his phone when we are together but whenever he is out with his friends, it takes him about 2 to 4 hours to text me back. He also stays out late with them (like 3 or 4am), but when we are together he keeps saying he needs to be home by 12 am because his mom gets mad (HE IS AN ADULT).

I just feel so unhappy, so lonely and i'm literally breaking apart trying to get him to change some things about his behavior since i feel like i'm not really at the top of his priorities. We always end up arguing.

Girls, please, what would you do?