Like NebulousShooter said, Tremolo faked cumming. You have the option of telling Sarah and Mel this, in Derek’s presence, so he fully knows what you didn’t do. Fucker still tells Maya “He eats his own cum” anyway.
I have more than a dozen paths saved. Fuckboy path, Jill-only paths (both CHICK and NEUTRAL), Bella-only path, Maya/Josy-only paths (CHICK, NEUTRAL, and DIK), Sage-only paths (CHICK, NEUTRAL, DIK), Jade Cathy and Nora path, Riona path, Lily path, Nicole path, nobody path, a Sage path I did with the wife, and a Maya/Josy path we’re in the middle of. (We’re on a break from it, playing Single Again.)
Neither are complete. One is shit. The other, Hillside, is very well done.
My first run through a game is usually a fuckboy path so I can get to know all the girls, although you’re often forced to choose between one or another (i.e. go on a date with Jill, or take care of a sick Sage). A growing number of games have their girls demand monogamy, so you get into some deep shit as a fuckboy! But I myself prefer monogamy anyway, and my second run is usually with my favorite girl.