Looking forward for suggestions

This might come off as weird for many people, but what does it mean when your partner says that maybe you like me more or you love me more, because I smile a lot when we're together, whenever I see my partners face. I'm not quite sure what to feel about this, like shouldn't it be like a cute little argument where both of us say that I love you more. It's not exactly a issue but just a little doubt going around my head all day..