AITA for being jealous of my roommate

Throw away account cause I really dont know what im doing. I (M18) am fighting with my gf (F19) because I am jealous of my roommate. A few weeks ago my roommate (F19) started seeing this guy. Hes reslly sweet with her and im genuinely really happy for them. The issue comes from him being around all the time and using pda. I was talking to my gf about how I wish we could be like them. My gf gets mad at me and calls me an asshole for saying that. I apologize and try to explain my reasoning. My gf is very distant and I have communicated my feelings about this with her. My gf will constantly pretend I dont exisit and spend more time with a boat than with me. Im only allowed to see her once a day and that really bums me out. Not only that but she has started leaving out daily visits early or just bails on me. Im really upset and I was really just trying to talk to her about my feelings so AITA for being affection in my relationship?