Rosalie was, of course, not just being polite when she said she wanted to treat Andrius to a meal.
That night, she reserved a restaurant before sending Andrius a message saying that they would meet during the weekend.
Andrius agreed before forwarding the message to Byron. [Byron, let's go together?]
Rosalie was treating him to this meal to thank him, and Byron had also made a large contribution to this matter. He should go with him.
On the other end, Byron frowned when he saw the message And