I have read somewhere that “"It took 18 years for a mother to make her son Adult (in Nepal, until he leave the house)  but it took only 18 minute for a girl to make her fool."  Anyway you do have a situation and this is tough. If she is your true love then she should never make you choose . If she doesnot understand the value of family then she is not going to understand the one she is going to have with you in the future. If its your family making you choose then you have to find out the reason ( why they don’t like her)  I would say both are important part of life so its better to talk with both and resolve this issue. When love is in the picture.. it should cause harmony not the other way