He doesn't feel at home

Kat
He says I don't make room for him in my life. We live in a tiny 1 bedroom apartment together. We also work together. I moved from a 3 bedroom house with 4 other people to this tiny apartment to live alone. He moved in with me after the first month from his parents house. Most of his stuff is still at his parents house because we don't have space for it. It's mostly stuff from his childhood. The apartment is filled with my stuff: just furniture and art supplies (I wouldn't be sane if I couldn't paint and do my art). He has his entertainment stand with his tv, xbox, playstation, game cube, and snes, he has my little bar table for his laptop and speakers, and his magic card collection, movies, both drawers in the night stand, his own closet, and all the stuff he uses every day. I can't help that all the furniture is mine. I moved out of my parents house when I was 17 and had to take everything I owned with me because my family moved to a home without a room for me. I've taken everything I've owned to every place I've lived since then. The only thing I have at parents house are boxes of old toys and stuff that my mom didn't want to get rid of. To me, they are hers. I understand that he wants to bring that kind of stuff with him, but we just don't have the space. I tried to let him decorate the way he wants to, but he wants to hang swords on the wall, and i want it to look nice. I let him hang his blacklight in the living room, but it hasn't helped. I let him hang the swords in the bedroom. Nothing. He doesn't seem to notice my compromises. What do I do?