If I'm right about this it's not just memories, everything was rewritten. Time is not like we perceive it, it's not linear, so if I was... deleted, I was not deleted just from one point in time and it wasn't a gradual change. It was sudden. I simply stopped existing from every single point in time since being pulled out from that lake, after that everything else would have fallen into place by itself.

[sits down on alt!Linc's bed, running both hands through his hair]