I like this girl, but shes straight and has a boyfrind... is it wrong i have feelings for her?

i'm sorry if you have a problem withe bisexual people but your going to have to deal with it cause it accepted now in days. anyway, i really really like this girl, we were best friends for a long time and were still really close. she has a boyfriend of 7 months and he makes her really happy and that makes me really happy. i would never wish for them to breakup but i still really like her.. she once said that she doesn't care about the sex of a person if she really loved her so i don't know if that actually means anything.she also knows i'm bisexual. is it wrong i like her? should i ever tell her? i just don't really know what to do..