I NEED HELP BIG TIME DO NOT KNOW WHAT TO DO AT ALL ANYMORE PLZ HELP?

so me and this girl have been friends for a like 2 years and this summer we hooked up and we have been seeing each other this whole time. So like three weeks ago my phone broke and i couldnt afford a new one so i couldnt talk to her at all. So when i get my phone back on wed she is like i am talking to other pep and it fells good to and what not. So she ended what me and her had. then on friday she is out drinking wit a guy and they kiss and she fells something wit him when she kissed him. so that following week they are talking and hanging out and i learned tonight that they had and now they are seeing each other. We are still friends bc we were friends to begin wit and we went threw alot. She says she still loves me and she wouldn't pick a guy over me if he asked her to stop talking to me. i mean she calls me every night before she goes to bed and she says she tells him about it but i am not sure if she does. She told him me and her were seeing each other but she didnt tell him we had . So what should i do still be friends wit her is there still a chance or what plz help me