I m hindu..and i love a girl who is sikh but amritdhari?? wht to do?

hello ..i m undu ..boy and i love a girl who is sikh even amridhari.....i fallen in love with her..becuse i think tht no girl till now dnt' have any realtions in past..........i didn;t find any girl ...but tht sikh smritdhari ...we r just frnds ..but as time goes on she also liking me ...and evn i m....now i wants to marry her...bcuse but she don't want....but b4 some months shee agred but now she thinks about my change in religion and all etc..wll be chnged..so wht shuld i do...i don't wnna lose her...evn she also loves me..but.she dnt wnnts to mrry.:( i m in big confusion