[Update] My [24F] boyfriend [24 M] won't let go of the past

I wrote this post last week about my relationship. I had last spoke to him on Wednesday, where I told him unless he could let go of the past and stop bringing things up, then this relationship was over. I was done being the emotional punching bag. I ended up breaking up with him on Saturday. I wasn't sure what I was going to do, but there were a couple of things that really sealed the deal for me.
When he came in the house, I hadn't even brushed my teeth yet so I went to go do that. As I'm brushing my teeth, he immediately stated that I was brushing my teeth wrong, and, "When are you ever going to listen to me about how to brush your teeth?" Then, when we went to my room, he asked how much I had cried since Wednesday. When he said this, he looked happy. Like it made him happy that I was so upset about this whole thing, like he took it as flattery.
It was at that moment I knew it had to be over. I love him so much, and am pretty miserable, however I know I needed to do it. I keep thinking that if I were in his shoes, and the relationship was so rocky, I wouldn't be criticizing him on how he brushes his damn teeth.
When I was breaking up with him, he kept saying this was the wake up call, and he was going to change. That I was giving up on him, and at least he can say he tried and I can't say that. He was relentless, but I stuck to my guns. Before he left, he told me he really hoped I would see a therapist, because I needed help.
It should also be noted that I am the same user who wrote a relationships advice post about having a boyfriend who wanted me to change my hair color. I'm pretty sure I deleted the post, so I cannot link it, but I honestly should have listened to you all then and not gotten so invested in someone who constantly felt the need to want to change me through controlling comments.
EDIT: OH MY GOD! You guys are so awesome. I have been so upset, but reading these posts have further let me know I did the right thing. The hardest part is that there were great times, and even reading my posts I worry that I was too hard on him and painted him too negatively, but I'm seeing now that this is just me making excuses. I feel terribly guilty about how sad he must be, but I know this will soon fade. You are all absolutely amazing and kind.
Just to clarify, I was the girl whose boyfriend wanted her to stop bleaching her hair blonde because he couldn't date me unless he saw me "natural".

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tl;dr: Boyfriend and I broke up, absolutely heartbroken but know it had to be done.


Source.

Y'all will be back together in 1 week, tops.

We all have a point we just have to move on in life.