Should I go to this grad party or not?

I'm a freshman. I've been 2nd chair clarinet in band all year, and the party is for the 1st chair. We aren't friends, but she was a great section leader and I always loved the quiet comments she'd make when someone was being stupid. A lot of drama went down between me and the 3rd chair clarinet player because she was jealous of me, and the 1st chair was really supportive of me. I like her, and I think she likes me, but is it weird if I go to her party even if we're not friends?