Years after a breakup, have you ever realized how toxic YOU were/ where YOU were wrong in the relationship?

Please post openly. I'm seeking to hear others' perspective and learn from it.

Feel free to post anonymously and let's not judge others for their answers. Also, I do not expect victims of abuse of any sort at the hands of partner to think THEY were ever wrong and I hope I'm not opening those wounds by asking this.

What made you wake up? Have you been able to forgive yourself?

For a long time I blamed my first ex's stepdad as the reason for her leaving me and was bitter at her for not telling me the reason for the breakup. And post-breakup, I did some dumb things.

Took me YEARS to realize some of my actions did contribute to the break up. And I still have yet to forgive myself for some of them. But I also have to give myself enough grace to remember that I NEVER had role models to show me what a healthy relationship looks like, that I grew up in a broken family AND that I was just a child barely becoming an 'adult'. I was 17-18 in that relationship and a victim of domestic abuse from my mother (even though I didn't know that at the time). And then I went right into the military without these issues resolved PLUS new issues from the military. None of those are excuses for how I behaved, but rather factors that I needed to heal from. Yes, her stepdad DID use my mistakes to manipulate her, but I gave him the ammo to do so.

It had been literally 15 years (we broke up June 16th, 2011) since we last spoke. I know conventional wisdom is to leave her alone. But part of me wishes to talk to her one more time. NOT to rekindle the relationship (I feel like damaged goods and too dark for that), but to simply talk one more time, apologize for everything and show how sorry I really am. To ask for forgiveness (and if I cannot secure it, maybe endure the wrath and every emotion she might have hidden and wish to take out on me because she deserves that right if she wants it). I know that is a stupid thought. Will not act on it, but needed to get things off my chest.

Years after a breakup, have you ever realized how toxic YOU were/ where YOU were wrong in the relationship?
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