This whole song is like a love story, how the person who is saying that everyone is going to "steal his girl", but in the end the only one that really knows her is him.
"She’s been my queen since we were sixteen
We want the same things
We dream the same dreams"
They've known each other since they were teenagers, growing up together and that they were presumably best friends since they have things in common.
"Her mum calls me ‘love’; her dad calls me ‘son’"
He literally has the get-go from her parents to say like, yeah she's all yours man.
"Everybody wanna steal my girl
Everybody wanna take her heart away
Couple billion in the whole wide world
Find another one ‘cause she belongs to me"
He is announcing to the world that his "girl" is all his and no one can have her but him.
"Kisses like queen, her walk is so mean
And every jaw drop when she’s in those jeans"
Now we now that they are together and that they are a couple in a relationship.
"I don’t exist if I don’t have her
The sun doesn't shine, the world doesn't turn"
He is saying his day is depressing when he isn't with her and that she lights up his day, or his life when they are together.
And basically they go through the song saying like, she's all mine, you can't have her and she knows i'm loyal to her and won't let her down.
This whole song is like a love story, how the person who is saying that everyone is going to "steal his girl", but in the end the only one that really knows her is him. "She’s been my queen since we were sixteen We want the same things We dream the same dreams" They've known each other since they were teenagers, growing up together and that they were presumably best friends since they have things in common. "Her mum calls me ‘love’; her dad calls me ‘son’" He literally has the get-go from her parents to say like, yeah she's all yours man. "Everybody wanna steal my girl Everybody wanna take her heart away Couple billion in the whole wide world Find another one ‘cause she belongs to me" He is announcing to the world that his "girl" is all his and no one can have her but him. "Kisses like queen, her walk is so mean And every jaw drop when she’s in those jeans" Now we now that they are together and that they are a couple in a relationship. "I don’t exist if I don’t have her The sun doesn't shine, the world doesn't turn" He is saying his day is depressing when he isn't with her and that she lights up his day, or his life when they are together. And basically they go through the song saying like, she's all mine, you can't have her and she knows i'm loyal to her and won't let her down.