Hmm, I hadn't thought about that. I need to think these things through before I post new chapters. If you want to do an alternate branch then I guess you have these options; Karyn was talking to Linda (her mom) about Jon acting strangely. Or Jon had told his new mom about the changes and then she talked to Linda about it. Or maybe Linda overheard Jon talking to Karyn about it.
They're a few ideas on how we can do it. I think that an alternative chapter definitely needs doing, either you can write it or I will.