Is it worth it?

A thought has been teasing me for sometime now.. I dont know why I think this way but I do.. can't really help it. If I go to heaven someday and find that everyone that I ever cared for, ever loved, ever wanted to spend my time with... is not there and will never be... is it worth it... to stay there and be part of something so beautiful but without the people u cared for? why does this thought bother me so much.. I dont know.. but I do know.. if I dont see that there in the heaven... to me it's not worth it. I dont know if people would agree with me but then again... I never really gave a crap about that.