My Twilight Soundtrack (of Taylor Swift songs)

From Fearless: 

1. "Love Story"  Think about it.  Read the lyrics.  Pretty much the whole saga.
2. "Breathe" For New Moon, when Edward leaves.

From Speak Now:

1. "Sparks Fly" Describes Bellward, but I guess you could use it for Twilight.
2. "Never Grow Up"  This could be a song for Renesmee, before they know that she's immortal.
3. "Enchanted"  Describes when Edward took Bella home from Port Angeles.
4. "Innocent" Because Edward hates himself, this song is for him.
5. "Haunted" For New Moon.
6. "Last Kiss" For New Moon.

From Red:

1. "Treacherous" Describes how Bella insists that Edward is the "good guy" and how their relationship is meant to be, though dangerous.
2. "Starlight" For their wedding, maybe.