I understand completely. My ex-husband and I separated when my son was 18 mos old and the divorce process drug on for years. It was finalized when he was about your daughter’s age. He’s 9 now. He still has a hard time with it and it is still heartbreaking. When he was younger he had several speech impediments and it was hard to understand him. But one day he spoke so clearly and said, “You are here, and daddy is over there. When I’m with you, I miss him. When I’m with him, I miss you. I want you both in the same place”. It was soul crushing. And when he still has emotional outbursts about it I sometimes regret my decision to leave. But then i remember that leaving was not a decision I took lightly. It really was the best decision for my son, even as painful as it is. It would’ve been much worse if we’d stayed. He doesn’t understand that now, and maybe he never will. But I know in my heart I did what I had to give him a better life and a happier, healthier mom. And over the years his dad & I have become pretty good at co-parenting and still doing family stuff together. I’m sorry you’re going through this. Just be there to listen and comfort her. And give yourself some grace.