My "friend" became so toxic what shall I do about this? Please help me?

Lollypop24
So a year ago i met this girl at university we became so close and i was so kind and helpful not like showing off myself but i am friendly with everyone.. i trusted her and we became best friends or that what i thought until we both began dating my boyfriend has a car so we have like double dates it didn't bother me at all until she started complaining how her boyfriend treating her and wished he would treat her the way my boyfriend does and i were always there to advice her even planned to let them both go out together to fix things up between them even tho that day i was planning with my boyfriend to celebrate our anniversary on our own.. She never stopped giving remarks about us why we hold each others hand so much while i didn't mind them making out in back seats and me and my boyfriend watching them and feeling embarrassed.. The thing is she never stopped this behaviour of comparing her relation with mine she even pushes me to doubt about my boyfriend and she feels happy when we fight like she feels comfortable when she knows not only her relation is fucked up.. Then she become even cruel making up fights with me for stupid reasons last one was cause i gently asked her to clean the place after she uses it because she became my roomate and she was Litteraly yelling and saying bad words like "you know what i am the whore that i came here in first place and now you blame me and think that i am a durty person" while she would ve just cleaned it and things woulf be fine that time i let her keep yelling and said you know what i am leaving and not reacting to this... And now I don't know what shall i do about it and how am i supposed to live with her
My "friend" became so toxic what shall I do about this? Please help me?
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