is it wrong to want someone to love you?

ive known this girl for the last 5 years & yet havent had the courage to tell her that i love her... we met five years back in college & the first time i saw her i loved her.. at that time i thought that we wouldnt get to know each other at all but it so happened that we got to know each other & have been the best of friends since then .. she was in a relationship with someone at that time and i didnt want to spoil things for her by telling her that i loved her so i kept quiet ... gradually she broke off from that guy & i have been there for her time and time again.. being supportive and standing by her ... whenever she has called upon me i have never refused to be there for her... then last year she met this guy who she is considering marrying at some time in her life..  the thing is ive kept these feelings inside of me (for her) far too long coz i want to tell her how i feel & but was & still am afraid of loosing her as a friend and thought/ still think  maybe she would hate me if i ever told her this but as of now ive just got to that point where i want to know if she too feels the same way... i know she doesnt think of me that way .. im just a friend for her & nothing more.many of my friends tell me that i expect too much from her or i should be ashamed of liking her that way...but i would like to ask this 'is it wrong to love someone & even wronger to want them to love you back too?