Friends - What Do I Do?

Living with my friend and her boyfriend at the moment doing them a favour as they will travel the first week of December to her home town to live so i moved in as i want to take over their place when they leave and to pay half the rent. well my friend the girls lets call her S was fighting with P (her boyfriend) and he packed his things to leave and called O his friend to go and stay with him. well O called me and asked me whats going on and i said i didnt know as when they were fighting i left the house for 1.5 hrs as they needed to be alone. anyway S is now saying that i was talking bout her relationship to O and tried to kick me out the hse only that P and her settled things and P talked her around to letting me stay. i mean i did pay half the rent and feel so insulted by what happened that she had the mind to tell me to leave. now i text her and told her that yesterdays problem should not be brought into today but i know the girl is stubborn and now i have to go home and face a night of silence from her as i doubt very much she will talk to me. also when she kicked me out i had nowhere to go and she said she didnt care if i slept on the street. any advice on how i should approach this stituation 

Its better for you to go and start looking for another place.
Someone like her can kick you out any other time depending on her mood.

whish kin friend be that sef?if u rilly did not discuss her problems with O as u said then u beware of her.She may jus be tryin to rip u off. Now that uve paid half d rent.she didnt hve any bloody right to kick u out.