"I love you too" and "I love you more" are both expressions of love, but they convey slightly different sentiments:
"I love you too": This response is a way of reciprocating someone else's expression of love. When someone says "I love you" to you, responding with "I love you too" means that you feel the same way about them. It shows that you share the same feelings of affection and care towards the person who expressed their love to you.
"I love you more": This response carries a sense of emphasis and intensity. It suggests that you feel your love for the person is even stronger or more profound than the love they expressed. It's a way of playfully or earnestly competing to express the depth of affection you have for each other. It can be a sweet and endearing way of saying that your love knows no bounds or that you cherish them deeply.
Both responses are positive and affectionate, and their meaning can vary based on the context, the relationship dynamics, and the personalities of the individuals involved. They are typically used in intimate relationships to express and reinforce feelings of love and connection. Ultimately, the sentiment behind both expressions is one of love and care for the other person.