My parents are divorcing

So ever since I was little, I just remember my mom being unhappy all the time and making comments sarcastically about my dad, but they always seemed so happy. As I’ve gotten to be an adult, 23 years old, over the years, my mom has confided in me and things that have gone on in their marriage, and that she has always really been unhappy but she stayed for my brother and I. I’m aware that my dad is a narcissist and honestly the way he acts towards her is scary, though he doesn’t lash out in front of us ever. I want to believe that he would never do anything to hurt her but it’s just some thing I tell myself to make me feel more comfortable and she’s made it very known to him that she’d like a divorce but I don’t think anyone actually thought it would happen. And then today she told me she filed finally. While I’m happy my mom is seeking the peace She finally deserves, a part of me is worried about what’s going to happen next. What’s going to happen now? How is my dad going to react? And it’s crossed my mind several times that maybe he do something to himself, or to both of them or to her. There have never been any instances of him physically harming her but I just feel it in my gut that this isn’t going to go well. she’s planning to leave the house and go to a place away from town so I want to hope that she will be safe. I don’t know exactly what I’m looking for in this post, I think I’m just venting. Even though I’m an adult, and I pretty much live my own life, I just can’t help but think how different things are going to be now because both of my parents are such a huge part of my life. I’m also feeling I guess some sort of regret because I also recently found out I’m pregnant and had the opportunity to tell them when things were still semi-normal last weekend and now I feel like I missed out on that and I’m not gonna have the opportunity again. again, I don’t really know why I’m posting this, but this is a really uncomfortable situation for myself and I feel deeply hurt in all honesty.