This would be in the context of a romantic relationship/partnership. My overarching view of this is that I feel like in our times and culture those words have become very cheap. Seeing people treat each other like total garbage and try to put a band-aid on things by saying the magic words. Can love not be expressed by your actions, your nature, and your respect towards another person? I know when someone loves me, they don’t have to tell me also.
My partner and I say I love you to eachother a lot. We do the usual like whenever we part but we also say it as little affirmations here and there like if one of us says something really funny we laugh and say I love you. We also often use it in combination with thanks. We have split up the chores around the house but we make sure to thank eachother when we do them and often add in an I love you like “Thanks for the great meal, it was really delicious, I love you.”
My parents never says I love you to me or my siblings and my mother says that the word has become cheap because people use it too much. I don’t understand the concept of a word having a commodity value like that but maybe it explains my first paragraph.