It's stupid to feel hurt that Aramis would have tried to run back to Paris, and off to the monastery, without seeing him first. It's stupid, because Porthos knows that he is in Paris, too, and trusts that his friend would not have gone without saying goodbye. But feelings don't listen to logic, and he's hurt all the same.

Still, he knows it is stupid, so he locks that hurt away and turns it into a joke, as they walk into the Smoking Room. "Well, that'll teach you to try and run off without a word, won't it?" He smiles at Aramis, as if all this news hasn't shaken him. "I'll get the wine."