Love, Loss, and Healing: Navigating Heartbreak, Trauma, and Unfinished Feelings

My most recent ex-girlfriend. We broke up in January after 3 and a half years (I'm 20) and after watching Little Big Lies recently I realized just how I am at my core not over her one bit. I guess the circumstances of our breakup are what hurts the most. We had a surprise pregnancy (didn't find out until the start of the second trimester) and being two young kids, dealing with that and the termination that followed just messed us up. We both did things I know we regret now, but I'm no longer upset at her, although idk if I can say the same for her. In a sense it was necessary because the breakup caused me to finally seek out help for some problems that had been plaguing me for years, but I sometimes find myself now just quietly waiting, hoping that maybe one day she'll realize the trauma we underwent was just that; trauma. I have a hard time now displaying interest in anyone else, I describe it as "the colours have been drained from everything, become muted". I know I will try to move on eventually, but a huge part of me will always belong to her, for lack of a less "cheesy" phrase. Anyways, that's who I love.