Just forget it. Whenever a girl ghosted me I’d just treat her like it was square 1 again.
I had a fren who got a concussion and had a habit of just feigining ignorance because “everything was fuzzy” and it was easier than trying to remember who he knew. I came to appreciate it because it gets rid of their triumph of imagining you being all broken up by it, as long as you can keep a poker face (austistic face blindness helps here too)
“hey sorry about not calling……I….”
(you give a quizzical look like you’re thinking you asked her to grab your mail or something)
“y’know, you wanted to be walking buddies?”
(half-cock your head to the side and shrug)
“uh, sure, it’s fine, I’m good. Thanks”