Firstly, congratulations on your success.
That alone should make you feel good about yourself, and toss the woman that treats you like that.

"Believe we did that before and iam the one who keeps coming back to her, I just had made my world rotating around her and even f she is just a normal typical person but I started to imagine her existing in everything my life and think about her in every second n my day and believe that, she is not bad and I did wrong things to her to and maybe worst than what she did"
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You are the one that keeps coming back to her?
Was the same case with me, and I put an end to it, and I swear to you today over a year later she still comes crawling and I continue to ignore her.
You cannot and should not forgive a person that cheats, and there is no way in hell the trust will com back.
She just seems like a horrible person.

I started imagining my ex in EVERY scenario of my life back when I was with her.
We were going to get married, and she cheated on me.
It doesn't matter, leave that to the past.

Don't tell yourself you treated her worse, because that's you convincing yourself that she's not so bad, and thats you being in denial.

Be a man about it.
Forget about her.
MOVE ON.

That is all..

Why did I become a Pilot when clearly I should be a therapist =/
Joking..

Good luck