Yeah, it's easy to forget that. Poor Ren's going to go gray in a month at that rate. :D
..or is he? *dun dun dunnnn*

There has been some coding weirdness, yeah. Somehow the code that should've prevented the game from storing the conversation with Nene worked the first time but not the second time around. It's been fixed for the next update already, but thanks for the mention anyway! I appreciate that a lot. :)
And yes, we've texted Yukari before, of course. She's sent us a selfie of herself in the bathroom and told us to meet her at the café a couple times. :P