Clay: Look, I really am sorry, I behaved terribly... I sent you the money. I promise it won't happen again :)
Rita: You don't have to promise anything - it was a natural (yet indeed somewhat stupid) human reaction :P
Clay: I just feel bad that I lied to you... P.S. They rejected the proposal with the eu... I'm guessing it's either hard brexit or I dunno, they're trying to get rid of Teresa May
Rita: Well that's nothing new
Clay is sorry that he behaved terribly. He sent some money to Rita that thinks his behaviour was a natural yet stupid human reaction. Clay feels bad he lied to her.