So i have some Girl Trouble...?

Basically i went to a party, met up with this girl i really like, got with her blah blah blah.. anyway later on into the night, she was like flirting with one of my friends which made me a bit angry then someone told me (i can't remember i was pretty drunk) and said that she kissed him, so i got pretty mad said some stuff which i shouldn't of said. and she got upset. anyway the next day she refused to talk to me, anyway the friend told me that he didn't get with her, but i don't know if it true blah blah, anyway i apologised to the girl. But it's still in that awkward situation where she still off with me, she told me she really liked me but she doesn't know now. but it's just annoying an want to know what to do next to get her to forgive me.