He chuckles. “I’m a big boy, Clarke. I can handle listening to you talk about your girlfriend.” It’s the closest either of them have come to acknowledging his pretty obvious feelings for her. It’s the truth, though—he’s adult enough to just be her friend if that’s what she needs. Even if it hurts.
From “Worn Around the Edges”, a The 100 fanfic set after the season 3 finale.