Yeah, 100% avoidable.
And thanks.
EDIT: Not currently true. I made a mistake. Forgot about a scene and didn't think about other story elements. After first patch, it will be 100%
EDIT2: All lesbian content now 100% avoidable.
Doing a quick test I had to stop and ask, if the player has no interest in Beth, but does have interest in Sophie ("roommate") during the bed conversation she tells him that if the MC isn't interested in Beth "she's all for her then", does that mean Sophie is going to be fuxking around with Beth even if the MC is interested in Sophie?