No, he's the one with no common sense. He's been denying they're on a date the entire time they've been on their date.
At least he got to see her sleeping face up close.
What do you mean forgot to mention you don't think that anymore? Isn't that the entire implication of the rest of what you said? So dense he can't even read his own subtext...
Going from singing together alone with one person to a competition is quite the step.