You say thank you to David

You went home in complete apathy. You've been going over everything that you did wrong, so that everything would turn out the way it did. And you didn't notice how you were at the door of your house. Opening the door slightly, you entered silently. You immediately heard David's laughter from the living room. He was watching another tasteless comedy. You walked up to him with trembling legs. She raised an eyebrow questioningly. You were bursting with embarrassment.

Thank you. - You said in a half-whisper. In the hope that he won't even hear. But it was obvious from his face that he had clearly heard everything.

Oh, you're thanking me too soon. The most interesting part is just beginning. We have a session on weekends now, so you can even take part.

He said it with the creepiest smile you've ever seen. You became even more creepy and you ran away to your room.