The longer he talks, the less Tim wants to hear of it. Sounds like the two of them are really joined at the hip already. The Real Tim was just too much of a bother, but the Mirror was chatty, and he supplied more answers than his Real ever did, so why not? Sounds about right, doesn't it?

"And you believed him?" Coming from Tim, that's probably the most goddamned hilarious thing Jay's heard all day. "Maybe you only remembered it because It," he says, placing a hissed-out emphasis on the word, "wasn't actually there to make you forget."