Originally Posted by Rebellion
I have worries that she will love him more, or that I'm not going to be good enough or something along those lines.
I think the easiest way to think of this is to think of two things that you love. For example, you may love both parents, but you see the relationships as different. Or may be you have pets, kids, or maybe best friends. (As a worst case, maybe favorite food can work as an analogy.) When I thought of love in those terms, I realized that love is not easy to compare.
The main things early in polyamory to deal with are communication, compromise, scheduling and dealing with arguments.