He choose 86 because that is sunbaes birthday, August sixt. 86. I believe his thinking was that of he straight up copied and had the same number it would be obvious but idk
I hate that they didn't get to escape together, I wished they left it as an opened ending so the readers can come up with their own conclusions buut at the same time I like how realistic it ended.
We did it, we found peak tragedy and angst.