sure dude all the time, I've even had sex with guy friends and told them I loved them, it'a not that big a deal, there's a difference between being in love, and being loving.
Dude my best friend hannah loves me and i love her, but we just wouldnt work together. Might be your situation might not, tell her. When i told hannah that i loved her she was so happy, so shit. You girl might be happy too.