Impact of CPTSD on relationships

Anyone lost important relationships in part because of impacts of CPTSD? My13 year relationship ended a few months ago, a big part was how my CPTSD impacted the dynamic making it imbalanced. While I completely understand the end, know it is not all my fault and see that I could actually benefit from being on my own and learning to truly regulate/care for myself, I also feel so afraid of that. Feels like climbing a mountain after climbing for years and I'm not sure I have the energy for more climbing and that scares me too.