That did sting. He actually felt his hand recoil from hers, focusing on his coffee cup and trying to swallow down the lump in his throat with the coffee. It only made that even harder to swallow. One of his own was like saying she'd been with someone in his own family. Patroclus was one of the men that had fought with him to bring her back, he couldn't say it didn't feel like a slap in the face. She wasn't his wife anymore, she hadn't been in centuries.
He didn't look at her either, but it wasn't because he was ashamed, just because he felt a little of himself drown in that same heartbreak as if it were fresh.