Not sure where you're located, but are you posting this in the middle of the night? Are you getting sleep?
It seems odd to me people would approach you and directly call you a monster. My experience is people would avoid directly addressing the issue, and more often either give you a sympathetic look or the cold shoulder (depending on their point of view). What is your wife telling these people?
Me:39 Ex-W:37 M:7 T: 9 S:6 D:3 BD/IHS/Confirm EA/PA: Feb '20 OM1 affair ends: May '20 W/OM2 & moves out: June-July '20 W files for D: Jul20 OM2 confirmed: 9/2020 Divorced: May '21