yes, if you go to have sex with the tomboy at the gym, you'll be able to lower that stat. have you found those scenes yet
see this
link
The only thing that I can think of is that you haven't explored other Taylor content yet, and that a certain variable has therefore not been triggered yet. If you haven't already, try to spend some frat coins on all the content that is available for her ('ask to use frat coins' and then explore all the available scenes), and have sex with her at the hotel?
To skip to the weekend: type 'GDS' anywhere in the game (outside of dialogue) and you'll be able to fast-forward to the weekend and reduce the grind a bit. hopefully that works