Well, there is your reaction to seeing Ashe in the park, then if you keep the money the thief leaves you. And then, when Nicki shows up, you have a bunch of opportunities to be gentlemanly and kind (like, you can tell her she looks nice in the dress, or that you thought she was a hooker in front of your door), or a bit boorish. A bunch of other little things. It's sort of like actually seducing a woman - if you make her feel good and comfortable, it's likely going to happen, but if you make her feel a little nervous and disrespected, it doesn't matter if she showed up planning to bang like rabbits, she'll loose interest.