So long as he's not reminded about his brothers not being here, he's fine.

Donnie finishes the rest of the current slice in one enormous bite, beaming as he nods. He's about to put greasy hands on the table to help push himself to stand on the bench again for another slice before thinking better of it, instead leveling himself up by leaning his arms on the tabletop. Once he's got another slice, he plops himself down again. Oh, he's definitely enjoying it.