if you look at your menu screen (right click) you should see which 'bae path' (lol) you're on. So if you had a fun shower scene to Parker,.... it SHOULD still be Parker who is on the menu screen at the top.
Here's something else that I noticed, in each of the route's there's always one other character that acts as a secondary character - I don't know if you'll be able to romance them at all, but they definitely come in 2nd place to the main person by day 6.
I think in Parker's route, Mark pops up quite a bit and his affection rating could go up to 20 something by day 6 -but parker's should at least be double that by day 6.
I've played this game way too much apparently.