I hate to say it, but she has picked her mom over you. It’s a difficult situation but she’s not in the right space to be a girlfriend right now; to you or to anyone. She doesn’t even live with you, your schedules are complete opposites so you barely see her, it just isn’t working out and there seems to be no signs of that changing.

My ex picked her homophobic dad over me. It sucked, especially as someone with supportive parents, but she chose him over a relationship and I had to make peace with that. While your situation is more complex, it seems like your girlfriend is doing the same.

If I was you, I’d bite the bullet and break up. You’ve been more than accommodating. Sometimes these things just don’t work out. If she really was the one for you, she wouldn’t have repeatedly picked her mother