Idk guy why does he keep on saying thank you ?? Or is it they're way of talking?

He spent this whole time anxious AF about his position there and exactly how he can be of any use, because he’s the kind of person that needs a TASK, so in a way aside from wanting this he’s also THANKING him for the opportunity, and overall for letting him be part of this

oh Tei my dear♡
I get it now, thanks