It's rather simple, i have no interest in dating Alexis(i actually like Nikki), her character doesn't entertain me at all... but i find the conflict caused by being in relationship with her and targeting other girls very entertaining.
That's why i have a save where i'm carrying her and messing around with Erynn, Iris, Gabi, Val, Nikki... pretty much every woman with a pulse.
I'll add that it seems pretty popular around here to have a whole bunch of saves, each one of them targeting a single girl and not messing around with any others, staying faitful.
But honestly i find the single romances of Intertwined rather boring, even with girls that i do like...
Erynn is slow as shit, you just know that you'll need to solve... EVERY... SINGLE... PROBLEM... that the girl has before getting somewhere with her, and until Nyx decides to make a scene where we finally put Ethan in jail, that ain't happening.
Layla was also slow as dying turtle, just kiss, kiss, kiss and never go anywhere... but Nyx decided to throw us a bone in this episode.
Nikki is artificially kept away in a different city, until she moves here in a definitive manner nothing can happen.
And Alexis... if you play "good boyfriend", has been pretty much obstacle free for a looooong time, there's no story to tell, it's been simply "go on dates" since forever...
The only way to add spice to this is to... not be a good boyfriend.
There's a possible sex scene with her in the "Alexis secret path" and a "if you weren't with Alexis i'd fuck you right now" in the actual Alexis relationship path.
That's about it, let's we have to wait for Nyx to actually give us something concrete with Iris and shake the status quo.