Yes. An ex-girlfriend I had when I was in my 20's. Everything out of her mouth was a put-down and I didn't have the nads at the time to stand up for myself. After I was finally rid of her, it took me nearly a year to get over her control and the guilt I would feel for doing certain things that she disapproved of.
I regret knowing some people, but generally those people aren't optional (People at work, family members, etc.). Friends and lovers that I regret knowing, cease to be my friends and lovers.
I regretted some like 20% '' Jerks'' of them but then i learnt how to appreciate the good loving ppl in my life.
I regret knowing someone only because of the dumb choices I made with them. If you could know in advance how sorry you would be someday, you would surely not even bother with them.
More often than I care to recall.
I've felt that way about some ex-boyfriends.
yes, just recently. so wish I had never responded to the fan request. scary, scary.