Thanks for the translation!
The series is going to try to make it "a thing", but it's silly for him to feel bad about missing the show/it's going to be silly if the idol is upset about it considering that he paid for his ticket. He still supported her. Then life happened and he couldn't get over there. Conversation over.
This drama felt kinda forced but I do at least appreciate that it was consistent with that guy being a pushy, shitty human being and it followed up on his weird confession kink from the contest.