What's the most manipulative thing anyone has ever done to you?

Ex went off birth control without telling me. Only found out because I insisted on going to the doctor when we had a pregnancy scare.

Omigod, why? That's a horrific thing to do.

Oh, my parents take the prize.

To pick just one thing, I remember a disagreement about how to re-arrange the furniture my bedroom. I remember saying (and with regret as the words were leaving my mouth), "well, it is my room." Instant shitshow. She announced that since she wasn't needed she would be Running Away From Home.

Even at 5 or 6, I knew that this was the stupidest thing ever, but that she also wouldn't back down unless I cried and chased her and begged her to stay. She got out the front door and slowly walked towards the street, stopping every few feet to look back. She had nowhere to go, obviously. If this were going to be a battle of wills, I held all the cards. I was also six. If I had been 16, I might have thought to lock the front door behind her. In any case, even at that age I knew that if I somehow won this, things could only get worse.

Yeah, I whipped up some tears and ran after her. But she never tried that one again and I like to think that it was because she got all the way to the street before she got her intended outcome.

That's absolutely hideous. Sometimes they only care about how you reflect them.

First ex would threaten to kill herself everyday if I didn't bend over backwards for her.

Also shit that my parents did but they were young and dumb trying to raise a kid and our relationship is actually very solid now

That's probably BPD, your ex.
- You can't really assume that just based on the fact that the person was manipulative. BPD doesn't deserve the hatred and stigma that it has, because not all individuals with BPD are manipulative or toxic, and individuals without the disorder can be terrible and abusive just the same.
  Please don't further spread negative stigma about people who struggle with a very difficult disorder which does not inherently make us awful, manipulative people.
  (Signed, someone with BPD who is very aware of how she treats others and has a very healthy and fulfilling relationship with another individual with BPD)
- no??? don't make assumptions on someone's mental health just based off of random tidbits of information online. my ex had a lot of problems that iirc she was diagnosed with, but that wasn't one of them. it's incredibly harmful and damaging to make wild assumptions like that, both for the people in question and people actually affected by the illnesses you're talking about. my ex was crazy but we were also teenagers and we both had a lot of trauma in our youths. I've also dated people with diagnosed BPD and it was nowhere even near the same level of craziness as my first ex. don't just go saying someone is bipolar off random shit, that's harmful to the person in question and the people who genuinely have BPD.

One of my former supervisors told me I was not meeting expectations, but he was willing to work through it with me. We made a PDP(Personal Development Plan) on which I worked hard for a couple months, getting good feedback all the time. When the plan was done we had a final meeting to conclude it and see where I stood. He spent almost an hour telling me how happy he was with my progress and how I exceeded the goals we had set, only to then pull the carpet from under me, telling me how he was in talks with another manager and that he was kicking me off the team. It's been over a year now and I still haven't recovered from that.

That's like psychopathic.

They told me that if I went to college and got a job, I'd be able to afford groceries.

My cat pretends he's starving to death. Every day. Even though I just fed you, Mojo