Do you think he likes her?

Me and my friends (Nicholas, Jamie, and Vanessa). we hang out all the time(Jamie's a guy, btw.). There's this girl she's a slut and flirts with all of the boys and Jamie used to like her but he got over her cause he saw what a slut she was. And Nicholas just moved her but we really get along with him now and we consider him like a part of the group. Anyway, the girls name is Vivian. When she met Nicholas she would do anything to flirt with him. She would drop things on purpose and bend down in a way so he could like check out her butt and stuff. When she left the guys started making fun of her. Then the next day I went to Nicholas and Jamie's (we're all neighbors). And Vivian was there. I talked to Nicholas and asked him if he liked her and he's like, "No, she's so immature and annoying. And she's a hoe so no I don't like her". But I get there and it kind of seemed like he was ignoring me to talk to Vivian. When she leaves he talks to me like nothing happened but I did kind of notice that he was all up of her laughing and having a great time. Do you think he does like her? I kind of got hurt. I was just standing there. I felt so left out. But I don't wanna make assumptions. I'm planning on kind of hinting it today so he can tell me, but I wanted to hear someone else's opinion, thanks.