She's encouraging her friend to go after the guy she wants even if he's in love with someone else. Basically, rock his world so he won't even remember the other chick's name. Pour your heart out, stroke his ego, gas him up, take him for the spin of his life. She's saying doing this is actually doing yourself a favor. "Love will be the gift you give yourself." You want him and you will have him.
![Cover art for Tell Him [Duet With Barbara Streisand] lyrics by Céline Dion](https://images.songmeanings.com/63e0f28f-b289-4286-b83c-968208ba21f9.webp)
She's encouraging her friend to go after the guy she wants even if he's in love with someone else. Basically, rock his world so he won't even remember the other chick's name. Pour your heart out, stroke his ego, gas him up, take him for the spin of his life. She's saying doing this is actually doing yourself a favor. "Love will be the gift you give yourself." You want him and you will have him.