Luca was rejected twice. The first time was Jamie, and the second time was Finn.
It wasn't every day that he asked someone to accompany him when he was going to do something, but both of them rejected him.
A week ago he asked Jamie, and the man said, "I promised my daughter to cook together that day, so I guess I won't be able to accompany you when you visit them, Luc. But don't worry. I'll definitely visit them another day. I'm so sorry."
He couldn't even be mad at Jamie because he knew that Jamie had sacrificed a lot of his family time in the past just to accompany him, and his daughter was often jealous of him. Luca didn't want to get more hate from the girl, and that was why he told Jamie that it was okay for him to go alone to visit his parents for the first time.