VERY MUCH A SPOILER BELOW:
one of my current theory's is that alvy might have known what was going to happen at the end to some small degree, i only have two lines supporting this and one of them is far from iron clad so i am probably wrong, the 1st being "if you or THEY want us to go against each other so much we'll do it" we already know that alvy obviously knows bird mask, but does he also know who therium is working for, or at least that he IS working for SOMEONE? the other line that got my attention was "i want you to know me well, well enough to maybe remember me in the future" this probably just means that alvy has anxiety and thinks that a couple years down the line cody might not remember him BUT what if it means that alvy at the very least knows that some time soon cody will forget all about the events of alvys route and has some small hope that if they are close enough cody might somehow remember the time they have shared?
also if Mof is reading this, is the next update going to contain the entirety of scribbles route, or is it being split into separate days like alvys?