does she loves me..???

i love a girl and proposed her and she said tht she likes me a lot, she dnt and will never hate me, and knws tht i can keep any girl happy.. but she cant love me....!!! and she told tht she will never love me...as she was committed.. but i said," i have confidance on my love and definitely one day u ll realize my love and u itself come and tel me tht u love me..." still v are friends... and recently she had a break up with her guy.. and understood tht he s a such cheap guy... and but these days she is very close to me.. and shares her happiness, sadness.. all her problems ... even her personal things... i feel she loves me... but nt sure... i love her sincerely.. does she loves me..? or hw can i make her love me...!! i cant imagine a life without her... if i come to knw tht she is not for me, the next second i wont be in this world....!!! :'-(