She wont leave it be. It's getting on my nerves now.She went to see my brother at work today, just to say "Tell your brother I say 'hi' even though I know he's not talking to me"Why can't she just leave it be and let me get on with my life?Incidentally, I've got a new problem brewing.There's this girl I've known for almost 3 years now. She's the one who set me up with my ex in the first place. Now she's always been pretty close to me, and she's always been there for me when I'm in a bind. The problem is, I'm now starting to have feelings for her.The reason it's a problem is that from when I met her, she's had a crazy obsessive crush on another of my friends that she wont let up on, so I know from the start I have absolutely no chance whatsoever.What I need, is to stop myself having feelings for her before they develop further. What can I do? I talk to her every day online or through texting or whatever, and this week I have seen her 4 days in a row, and she's always really flirty with me.