The fact that it seems that majority of people, when encountering someone happy and with 'life sorted', make themselves or others feel better by saying:
"Well. He/she may look like they have 'all their ducks in a row' (learned that on MN) but there is probably, most likely lots of shit going on in their life and they just mask it well" type of thing?
AIBU to find it quite sad that people have to pull someone down or imagine someone else has a misfortune hidden to make themselves feel better?