Never fall out of love

In the past, I have fallen in and out of love several times and broken quite a few hearts. Since I have been with my husband, my heart honestly feels as though it could burst it is so full of love for him. I never want to lose that feeling, I never think I will. I only worry that the saying “what goes around comes around” is true, and that because I have finally found the man I want to share the rest of my life with, he will grow tired of me and leave me.