How do I deal with this girl?
About 3 months ago, one of my friends started messaging me flirty things, jokingly of course, cuz we always do that to each other all the time. But she also got her friend named Nicole (not her real name), who i haven't seen since middle school, to also flirt over her facebook account. So I flirted back, then several days later she somehow got a old of my phone number and starts texting me, continuing the flirting game. So I flirted with her for about 2 month, and i really believed that she was kidding and she knew i was kidding, but my friend, the one i mentioned first, told me that Nicole was actually serious about all the stuff she sent me, and thought i was serious, too. If it was any other girl, I wouldn't mind, but nicole has some serious anger issues. She's done some really terrible things to her ex-boyfriends, some even almost got in trouble with the law because of her. How can i end all associations with her WITHOUT getting her angry?