Everybody else will act normal and all prior evidence of their existence will also persist like normal.
Edit: For clarification, the people are actually missing but everybody is essentially hypnotized to not notice. Even if specifically asked about the missing people they will pretend like everything is fine. So everybody goes on about their day normaly.
I guess for most people it would be pretty much immediately if their significant other isn’t there in the morning and for some fringe isolated cases it might take forever.
I guess best case for me would be around 4 hours on a work day during lunch break seeing a big crowd of people when it would finally click.
Worst case would be probably 5 days when I’m mostly working from home office.
Would notice immediately when I go to work, too much of a strange coincidence for most of my office to be missing.
Plus I guess you’re saying they still exist? So it would be sort of like being in an office full of ghosts still going about their day, I’d keep seeing invisible people answering calls, printing stuff to the printer, etc.
PS - This is all assuming I make it to work, just walking to work in the morning would be a disaster if I keep bumping directly into invisible people in my building, out on the sidewalk, etc… so most likely would notice something is wrong long before I make it into work. And all the self driving cars, LOL.
No I mean everybody is essentially hypnotized to not notice them missing except you. Even if you were to ask somebody “How’s your wife/husband?” They would answer you “She’s/He’s fine.”