It is good to be appreciative when someone helps you.
Mike has just finished helping Brad move some heavy furniture, and they're taking a break.
Brad wants to tell Mike they're done, and he can go.
Brad tells Mike he really appreciates all the help Mike gave him and thanks him before saying he can go if he wants.
Brad tells Mike that was it and Mike should go home now since they're finished.
Mike is delighted that Brad is appreciative of his efforts and help and tells Brad to have a great day.
Mike is insulted that Brad is being so curt with him and that he never said thanks.