I could be wrong, but I took the song as this:
There's a couple who are together, but due to differences in social class, are ridiculed for their relationship ("When I see yr friends around, I will stare them down
Bite my lip and I will whisper my love"), but overcome it but simply reassuring themselves of their love. One of them is very lower-class ("I think yr city's a mess, yr birds don't know when to sing" , "Come candle light our path through the burlesque queens"), and often doubts whether they are good enough for the other; to which they are reassured "don't doubt yr worth".
I could be wrong, but I took the song as this: There's a couple who are together, but due to differences in social class, are ridiculed for their relationship ("When I see yr friends around, I will stare them down Bite my lip and I will whisper my love"), but overcome it but simply reassuring themselves of their love. One of them is very lower-class ("I think yr city's a mess, yr birds don't know when to sing" , "Come candle light our path through the burlesque queens"), and often doubts whether they are good enough for the other; to which they are reassured "don't doubt yr worth".