I am at the skyskraper with Caitlyn, it says "choose carefully". I need a small guide, or at least a hint on what the consequences are going to be...
It appears that all of the six will get a pivotal choice scene like this.
From the wordings of the choices, I expect that one leads to a romantic ending, one to a friendly (FWB?) ending, and one that lets her go. That's just my speculation, though.
And whether or what choices lead to a harem ending, who knows?