Dont switch seats

I booked an aisle seat last min. I boarded first, then 3 people came to me, two couples and i think the husband’s mom. The wife said: “Oh no, mom, looks like we messed up your seat!! you’re actually seated behind us”

I, being the idiot peacemaker, immediately offered to switch so she could sit with them.

We switched, then the wife turns to me thanking me and then says “we actually planned it that way” then laughs and say she is kididng… And that’s when it clicked… I had just blown up their carefully staged strategy to keep the mom one row away.

Moral of the story: dont switch seat everrrrrr