This girl has been a pain in my ass, she's two-faced and unfortunately a part of my wider friends circle. She jumps between hot and cold, cold when we initially interact hot as soon as whatever group we are with accepts me for the asshole that I am. She has admitted to wanting me but is always such a bitch it's a turn off and I end up shutting her down too hard. The only time we have ever gotten close is 1 at a party we made out. 2 went skinny dipping with a group and I threw her in the water and carried her around on my shoulders after. She wanted to come home but I got Cock blocked hard by her bitch boy orbiter (shamed her for going after an asshole). 3 at another party we ended up in the bathroom alone, she was joking about getting caught and i didnt make a move on her (stupid me). We see each other around but I never know if she's going to be all over me or be cold. I'm pretty sure she's just using me for validation.

Now the question is how do I handle her at the party tonight, I'm 90% sure she's going to be there and will definitely Cock block me if I hit on other girls.

What do I do?