Derek remembers the day he swore he’d never love again. It was the day his house burned down, the day his family died, the day he finally understood why his tattoo was never on Kate’s body. He wants to claw at his own skin when he understands, wants to tear the mark she left on his arm when he gets it.
She never loved him. She only used him to get to his family. And now, he has to live with her mark on his skin until he dies, because this is how it works. When you fall in love, their tattoo appears on your body, and it stays forever. It never goes away.
He wakes up everyday, and it’s always there, as a reminder that he’s responsible for his family’s death, that he’ll have to live with that for the rest of his life. His own tattoo seems to mock him on his ankle, and he starts to hate it, just as much as he hates Kate’s.
He doesn’t want to love anyone anymore. He doesn’t deserve to be loved either.