What happened Dad?

In the previous chapter, we read that, In the morning Mrs. Henry went to Robert's room to wake him up but she didn't find him there, she panicked and ran to Mr. Henry and told him the news they had a little argument then they searched the whole house, at last they went to Robin's room where they found him. Robin woke up because of the voices. Mr. Henry and Mrs. Henry looked at each other. when he asked:

Robin: What happened Dad? Why are you and mom here?

Mr. Henry: Nothing, we just came to wake you up on your first morning for breakfast. Oh! Robert is also here

Robin: Yeah.

Mrs. Henry: Why is he here?

Robin: He is just...

Mr. Henry: Why do you have to ask about every single thing? They were roommates before he must be missing him, right Robin?

Robin: Wow! Dad, you read my mind

Mrs. Henry: Okay! Now get up and come to the dining table, breakfast is ready!

Robin: Coming!