Im not sure what to do now help please?

so last night i was talking to this girl i like and she asked me what i thought of this guy shes friends with so instead of me telling her how i feel about her i tell her to date who she wants and its not my place to judge people for her. later that night i was at her house and she walk in the room with a hickey on her neck after being out with this guy so i get up set and go to leave i get in my car and she followed me out side i back my car out and she stands in front of my car and start yelling at me to talk to her but i don't i just back up further and go out the other side of the lot 15 min later i try to call her i got ignored and she wont text me back I've been friend with her for a long time i don't want to lose her what should i do