I was reading that one of your fears is that she will fall in love with someone else and leave you. At the begining of our journey I had the same fears about my husband. I came to the conclusion that I didn't want to try to hold on to someone if they didn't want to be with me. I want to know that he's with me because he wants to be not because he "has to" be. It's actually ended up bringing us closer.
Everything will be ok in the end. If it's not ok it's not the end.