<human>: Condense the text into a few key points

my roomie Mike started dating this girl Katie and she set me up with her BFF Sara. Everything has been good for the first month.

but now i've been getting the 'telephone game'. Sara told me that Katie said that Mike thinks Sara is only using me for sex. And Mike denies ever saying such a thing.

or Sara told me that katie has been telling her to break up with me because i am manipulative. But when i talk to Katie about it she says that Sara is the one who thinks i'm manipulative.

any advice on dealing with this kind of thing? it's really worrying mike and katie. and it upsets sara because she believes these 'rumors'.

it doesn't help that when katie and her ex broke up he hooked up with a close friend of hers and their friendship never recovered. katie is worried a man might come between her and sara now.
<bot>: my girl and my roomies girl are besties. but rumors and miscommunications are causing problems 'he said / she said' kinda stuff. any advice?