Eminem- Headlights (Feat. Nate Ruess)

Im pretty sure that this song is an apology to his mom. He is telling her that he regrets writing badly about her in another song of his, Cleanin' out my closet (that he deleted from his track) where he called his mother a few names. So I'm coming home tonight

Well no matter what the cost ... And I was not afraid to die

this part was him technically saying that he wants to come home, no matter what the consequence is. All in all, this song is one of my favourites and I just learned all this information from the lyrics as well as some research. Just wanted to share it.