If anything, it's the perfect time to ask. Darcy and Helena are making plans for the rest of their lives; it makes sense that Phil would want to check that he's still along for the ride.

Darcy adds-

"He was nice. Super protestant, but nice."

Kind of terrifying, but he was nice and so they won't speak ill of him.

"I think you would have gotten along. He was fine with like," just kind of gestures between them and Helena, "everything."