What the ...?

How can someone be mad at you for no reason that you know of and ignoring you and than the first thing they say to you is "i'm maddly in love with you".  Who does that?  I mean really.  If you are in love with me, why were you ignoring me in the first place.  And too bad that you know for a fact that I don't love you that way, that you are my friend but nothing more.  I care about you and trust you, but as a friend.  Sorry but your in the friend zone.