Song Meaning #2

The Verve Pipe's Freshman

I believe this song has 2 different people or stories
1st verse is this punk rock chick who was pregnant and she had an abortion. But however she said it wasn't her fault because she was young.

2nd Verse is about a guy that broke up with his GF and she Od and died and he feels very guilty for not grieving her death but he cant because he was too young

And the chorus / rest of the song is talking about they shouldn't be responsible because they were young or in the freshman stages of their lives