Am I A Pick Me?

I usually don't use this phrase often because it can be taken a lot of different ways, but into the story.

So, I have a very close guy friend (Daniel) who I have been best friends with since kindergarten. We've done everything together and love each other platonically. We're juniors in high school now and are still super close. When I was a freshman I came out as lesbian and have a girlfriend who I've been with for a year.

As for Daniel he's the best. He's bisexual and has a boyfriend that he started dating only three weeks ago. We do assignments in class together, do soccer together, and have the same friends.

This one girl in my history class was never friendly to me, but was never super mean either. We sit at the same table across from Daniel. I always thought she was kind of annoying, never letting me borrow anything and being short with me. She also didn't like my girlfriend and was mean to her. (So she knew I was lesbian.) But I never let it show. Today the teacher announced partner work and I had come in late from the bathroom. So the only two people without partner were her and Daniel. I naturally picked Daniel to work with because we were planning to do the project together anyway like we always did.

I high-fived him and we sat down together at his table. She now had to work alone or with someone from another class which was harder. She walked over to me and said that I was a pick me for choosing a boy over her. And she also subtly accused me of being in a relationship with him. She said I was trying to push her aside and trying to get with Daniel.

Both me and him found this absurd because she obviously knew about both of our relationships with the same gender.

I am very non-confrontational so I just stayed quiet while Daniel told her to shut up and go away. She did after that but kept randomly bugging me about it whenever we walked past each other. I know I probably wasn't being mean to her, but I can't get it off my mind. So, was I being a pick me?