My mothers cousin is a Vet out in a rural area. This dude makes bank and is a really super nice guy. He was very close with his elderly mom and dad. Sadly his first wife lost a ton of weight and then felt that she was out of his league and left him. Few years later he shows up to my mom's house with this Sophia Loren type...10x outta his league. She was all sweet and sugar pie to everyone. I forgot what I did to piss her off, but it was an accident...but she broke character for just a second...and let Cruella DaVille show through. I was a kid, and she grabbed my arm and looked at me like she would kill me. Everyone said I was crazy...and mean...and that looks aren't everything...and that she loves him. Like I was trying to sabotage his relationship. Fuck me right? Flash forward 2 years...she kicked his parents out of the house they were in for 50 years...sold their home against their will...stole all their money..forced him to choose between them and her...sadly he chose her. She drained him...tore apart his family and ruined the last year of his fathers life, he died scared and miserable. Told his mother.."Just give me the money, you won't live long enough to use it." it broke her heart that her son just stood there. But karma paid that bitch a visit to the tune of acute leukemia and she died. His mother is still alive...in her 90's and doing pretty well. He's back in the fold...just sucks his father didn't get to see the end where everything went back to the way it was.

EDIT: guys this didnt happen to me, as the title suggests, this happened to someone in an AskReddit thread, thankfully I didn't experience this type of evil, and hopefully never will. I didnt directly link because I didn't want hordes of SJWs coming here talking shit.

More horror stories here: https://www.reddit.com/r/AskReddit/comments/5xgf2m/have_you_ever_correctly_had_a_gutfeeling_to/