I love a girl,bt cnt talk to hr n tel evryfin?

I love a girl we study wif each othr v knw each othr fr 4 or 5 months and stil to stdy 1 n hlf yr.but th prblm is tht i cnt go upto hr to tel hr.im bit couragless n kinda scard tht wt wl b hr reaction aftr.lemi tel tht naturaly she simple nd kinda gal havin no affair be4,but smtyms my frenz temi tht shez kinda intrstd in u,but i dnt thnk so when she opposes me smtymz in cls matrz.plz hlp me out how can i mke myslf to tel hr tht i luv u