"W-well, the temple is the same as when you were last here, where-"

Did that include the part about his room being the most comfortable place? But Issei couldn't possibly just invite Archer in there, that would be too forward! But what if Archer wanted to go in there? How was Issei supposed to know when it was time to move forward? It wasn't as if Issei didn't already want to - no, no, stop thinking about that!

Needless to say, Issei panicked.