Sorry I meant your home in the woods, where Korg is, my bad.. Still, I think you got all requirements for Ste's visit, it is random..
You can't, Ste will automatically give you a heart and Bernard needs 3 to continue an arc.. But no worries, all characters won't be mad at you if you have multiple partners. Just don't try to suck Ste's dick when Logan visits Ste's house first time.
I have 2 saveslots; one where Logan is a top and I try to stay loyal to him only, the other is where Logan is a bottom and I'm whoring it out with all characters and humanoid enemies.