To me this is completely polite and a nice way to ask, while the MC wouldn't be interested in a CIS male (I think I am using that right) like Lee ect, I think if he got involved with Skye, it would be a gay relationship in that 2 ppl who identify as male were dating, where in his relationship with T-Shauna and even Penny would be considered straight because they identify as female in the case of the Trans route versions.
Edit: If I am wrong hear, please correct me, this was just how I saw it, but am open to getting it right!