Data mining - searching your phone
Did yours early on or in the dating stage blatantly go through your phone? For me I'd give him my phone to look at a reel or photo and I'd be distracted like eating and he would be immediately scrolling through my reddit app, my messages and social media. Then I would question why he would do that and he responded he was just bored.
I'd leave to use the toilet and he somehow had memorized my lockscreen code and went through my phone... No permission
Later on I needed to show him one message about some good news on a friend, he grabbed my phone and started scrolling through ALL the messages between me and this friend and he landed on one where I was talking about him. I tried to grab my phone back but he refused. I said nothing negative, just the way you'd talk to a friend about the guy you're dating and vetting. he went on a full on split and spiral, angry, moody, threatened to hit items, accused me of breaking up with him. That was the first time I was scared of physical abuse and really saw the potential for him to explode in seconds.
Of course, after a 3 hour circular argument, I ended up being the one that had to apologize. fml.