I love the line "It's alright baby, I'm nobody's mother" because I think it's about how she doesn't feel important. Like, she's saying this guy doesn't have any reason to stay with her- it's not like they have a kid together. And the cigarette is her ignorance. She knows deep down that this guy is lying to her but she wants to believe him with his honest eyes. The cigarette represents how she feels when she believes it. She doesn't want the cigarette to be over because she doesn't want to admit to herself that this guys lying to her.
I love the line "It's alright baby, I'm nobody's mother" because I think it's about how she doesn't feel important. Like, she's saying this guy doesn't have any reason to stay with her- it's not like they have a kid together. And the cigarette is her ignorance. She knows deep down that this guy is lying to her but she wants to believe him with his honest eyes. The cigarette represents how she feels when she believes it. She doesn't want the cigarette to be over because she doesn't want to admit to herself that this guys lying to her.