Advice needed, relationship problems

I've been dating the same person for almost 7 years. We took a few months apart, but got back together. I currently live with him. 
We are both working. I clean and take care of the house and buy groceries and cook. We split rent and other bills evenly. He now gets upset because I don't clean everything. He does not want to spend time with me. Every time he gets mad he totally shuts me out. Right now he told me to get away from him so I'm alone on the couch while he is in the bedroom. 
I love him and he says he loves me. I used to be able to feel it. Recently I feel like I deserve more. I feel like there might be someone else out there who would treat me better and make me feel like I'm in love rather than just used to it. I feel like I'm more scared to leave the relationship because I'll be alone and I haven't been in so long. Am I just used to being with him rather than being in love? I don't know how to figure out what I need. I don't know if there is anyone else out there, but I can't stop thinking that there is something better for me. 
Has anyone else been in this kind of situation? What did you do?