A high school girlfriend followed me.
Charming narcissist. Ruthless in her self-absorption, she wanted what she wanted and she acted on it, nevermind collateral damage.
I shouldn't have told her the school existed. It was my oasis, my sanctuary, my little Shangri-La in the smog that had miraculously appeared exactly when I needed it. It was my life raft and my promise of recovery. It belonged to me. She had no business being there and I was naively stunned that she was.
I didn't then understand the level of narcissistic entitlement she believed was normal. It took years under the same roof with an addict to teach me reality. That experience was decades later and I finally learned the lesson. Don't share with the greedy. They'll take far, far more than you offer.