The singer is losing his virginity in a library "I never thought I would come of age...", the girl is trying to get over her ex "taking toffee with your Vicodin..." He accepts that she doesn't feel anything for him and will probably "go her own way" and they'll "never speak of it again.
"dark winters wear you down
up again to see the dawn"
I think this is again regarding the ex the girl is trying to get over. She has had a dark winter grieving for their relationship, and her sleeping with the singer is her beginning to see the dawn.
The singer is losing his virginity in a library "I never thought I would come of age...", the girl is trying to get over her ex "taking toffee with your Vicodin..." He accepts that she doesn't feel anything for him and will probably "go her own way" and they'll "never speak of it again.
"dark winters wear you down up again to see the dawn" I think this is again regarding the ex the girl is trying to get over. She has had a dark winter grieving for their relationship, and her sleeping with the singer is her beginning to see the dawn.