Ehh friend problem. what should i do?

so in p.e we were playing hockey and sara was on the opposing team and we were both going after the puck and i hit sara in the shins by accident and i said sorry and she accused me of doing it purposely and then we stayed after school and sara was like i got a 95 on the global test i was like oo good job and then she was like what did u get and i was like 100 and then she was like oo well thanks for rubbing it in my face and i was like oo i'm sorry and then mary was saying she wanted to try out for the basketball team and i was like oo thats a good idea and then sara was like eww y would anyone do that (meanwhile i am on it) and then mary was like to me well can we get together and practice for basketball together and i was like yeah u can come over my house, sorry sara i guess u don't want to and then she ran off and started crying and i was like whats wrong and she was like get away, leave me alone i don't want to see ur face. so i left. and she hasn't talked to me since (2 wks)