Zagreus ruffles hair like everyone is Cerberus. While Thanatos still doesn't know how he feels about it, he knows that it's just Zagreus being Zagreus.

"When... I was surprised about Megaera, it was because she reminded me of Dusa," Thanatos admits quietly, not wanting to step on what set her off earlier. He glances a Persephone for a moment before returning his attention to Zagreus's drawing. "They're friends, from what I've seen in passing."

He still wouldn't call Megaera a sweetheart, but she's a good, respected colleague of his. (... Are they actually friends...?) Thanatos doesn't think badly about her and knows her job isn't easy, especially with the added responsibility of trying to stop Zagreus. Dusa... well, he doesn't really interact with her and only occasionally sees her. Most of his opinion of the gorgon head comes secondhand from his mother and then Megaera.