Love means:
1. an intense feeling of deep affection.
2.a great interest and pleasure in something.
3.a person or thing that one loves.
4.feel a deep romantic or sexual attachment to (someone)
But "I love you" mean:
Each time you say "I love you," you are really saying "I am here for you.". "Being here" means being fully present in the relationship—physically, emotionally and spiritually. Saying "I love you" means "I am committed to you" and "I am committed to us.". You are telling that person you are in this relationship.
Fact of the day :)