Reaching Nonna Flavia's house, Gael still hadn't responded to Angela's text. He was at a loss for words on what to say. The two of them had been doing well lately despite their sticky situation. Although there's still an apparent distance between how they're talking to each other, Angela understood his circumstance better now—so seeing that she's more vocal about how she felt made him tread more carefully. He didn't want to ruin what's already fragile by saying the wrong thing. So what was he supposed to say?
'Thank you for worrying'?
It just didn't seem good enough of a response for him.
When they got to the house, Gael, Giovanni, and Alessandro had a conversation in the office where they could have some privacy. Gael and Giovanni relayed the information they got from their short trip to Chicago earlier and discussed their course of action.
"A buon intenditor poche parole." means: Few words are needed for a good listener.