I think my cat doesn't like me anymore?

Ok so me and my cat (Krobus) moved into our new college dorm in early September. It was going great at first, she gets along with my roommates, has tons of space to play, tons of toys, and a big scratching post. She's very happy. I spend the weekend with my gf, I'm gone from Thursday night to Sunday evening, sometimes I come back earlier though. The issue is that every time I come back I feel like she wants to spend less and less time with me. I feel like by spending time away I'm diminishing out bond or something, cause the further she gets from me, the closer she gets to one of my roommates. Like, she'll sleep in her bed, follow her around, play with her all day, etc. She still wants to be in the same room as me and she'll sit outside the bathroom and wait for me when I shower and brush my teeth and stuff but most of the time it feels like she doesn't even acknowledge me. I feel like a jealous loser but it makes me really sad. I know cats will be upset with you for spending time away but I spend a lot of time with her too, most of my week is spent at home with her since two of my classes are online and I don't even have to leave for them. I know it's not selfish to want to spend time with my gf but I feel horrible when I come back and my cat is upset with me. Is there something I can do without pushing her boundaries? Cause I don't want to force her to spend time with me. I know I'm being dramatic but this is genuinely making me so upset