Personally, I think this song is about a friends with benefits type relationship. She knows he likes her in some way because he's chasing her every night (presumably for sex), but is it for her brain or just for her body? This she isn't sure of.
She is in love with him, but she sees that he doesn't see her the way she sees him or the way that other guys see her - "irresistible, kissable", he thinks she's "invisible". His heart is cold because he obviously only wants her for her body.
Personally, I think this song is about a friends with benefits type relationship. She knows he likes her in some way because he's chasing her every night (presumably for sex), but is it for her brain or just for her body? This she isn't sure of.
She is in love with him, but she sees that he doesn't see her the way she sees him or the way that other guys see her - "irresistible, kissable", he thinks she's "invisible". His heart is cold because he obviously only wants her for her body.