Yes. It's about seeing that person in their darkest time yet still choosing to love them. That is love. No relationship is perfect. There will be fights and dark times. But when you truly love someone you work through it.
I do this all the time. With my husband, our children, a close relative, a friend. Sometimes I just randomly get an incredible overwhelming feeling and am reminded of his much I love them and how blessed I am to have them in my life!