a friend of mine, we'll call her friend A, told me tonight that our mutual friend, we'll call her friend B, is pissed off at me. i kind of already knew that, but tonight friend A confirmed the truth. the reason friend B is mad at me is over a rumor. i had recently seen friend B in public with her cheating ex-bf, who she said she cut contact with after their dramatic breakup. they didn't see me but i saw them, and whatever she was doing is her business anyway so i don't care. i later mentioned it in confidence to another mutual friend, we'll call her friend C, as well as my sister. however, i specifically requested that they not tell friend B about what happened so nothing dramatic would come out of it. friend C kept quiet. but my idiotic drama queen of a sister went on ahead and told friend B anyway because she "felt friend B needed to know." tonight i angrily confronted my sister and she admited about telling friend B. she said friend B was embarassed, and later asked friend C if it was true. friend C confirmed it, but only after my sister had told already told friend B. (i'm not upset at friend C though.) so since then, friend B has been mad at me and believes i've been talking shit and making up rumors within our circle that she is still seeing her ex. i kind of already knew that friend B was upset with me when she stopped returning my calls and text messages, and blew me off at every social gathering we both happened to be at. and on top of that she had been very catty and sarcastic with me to the point where it was just straight out bitchy. however, i didn't know until tonight about what friend B had said to friend A at a recent party we all attended. friend A asked friend B how she was doing and if things with her and her ex had fizzled out. friend A said friend B snapped and lashed out at her saying, "i don't know what the fuck that bitch Condom Fairy told you, but she's making up rumors about me still seeing my ex. whatever the fuck she told you, it's not true, and Condom Fairy's a bitch for starting shit." (at this point friend A didn't even know i had seen friend B and her ex together, hence the phone call tonight confirming friend B's position.) so now that everything is out in the open, the question is, what do i do? do i take the initiative to be the bigger person and really try to talk to friend B one on one? or do i leave it be and walk away since friend B won't even return my messages? as i stated before, i've tried to make the effort to speak to her on several ocassions but i'm not getting through. i've invited her to various outings, a halloween party, and even a weekend trip to vegas. each time i've tried to get in touch i never got a response, and everytime we're in the same room she's blown me off. i don't want to lose her as a friend because we go way back, but it seems like that may be the case. so... what to do, what to do? *incase you're confused about who's who, here's a break down list.* friend A - the person who confirmed friend B is mad at me. friend B - the person who is mad at me over a rumor. friend C - the person i told in confidence about friend B. my sister - the person who told friend B i saw her and her ex.