Moving on after a long term relationship?

I've come out of a very long term relationship (15 years and met at high school) We broke up about 1.5 years ago and are both in new relationships. My new girlfriend is amazing but I'm still floating between trauma of my ex partner. Things she did to me, ways I treated her and overall trying to exist in this new world.

For the most part I'm ok and I don't project anything on to my current partner or my friends but deep down I feel pain walking the same streets with my ex, reliving memories of the past and would like to know how I can find a way to let go?

Moving on after a long term relationship?
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