I need help with my friend problems!?

Okay. My best friend in the whole world is named Molly Barnes. I have known her for a long time and I think she is awesome. I just recovered from a fight with her, and I THOUGHT we were better. But at a Book Club meeting later, things got bad. I was the leader for the week, and the group was going wild. Molly B. said I needed to keep them under control. Later, she said she wanted to vote me out of being leader. Another girl named Molly Sanchez said she agreed. Then, a girl named Allison said that was VERY rude. I didn't talk for the rest of club. Later, I told Molly B. that she upset me. She walked away. We were mad at each other. Molly B. and Molly S. talked to each other and gossiped about me all day. I did the same about them with Allison. I was mad at them and didn't speak to them the whole day. It was annoying, because the kept calling themselves "M&M". At the end of the day, Molly S. said she was sorry. But my best friend didn't. I am super depressed and I have know idea what to