Hey Reign, I am glad it helped. Being part of something you had little control over is a heavy thing. In time, you will get pieces of why certain things happened how they did, when at the time they just seemed so out of place.
Therapy is a great tool for anyone, it most certainly can become part of the ways you move on from this relationship.
This is going to take time to work out. You are going to "feel" this in many ways.
Don't rush to anything, and find ways to start working on you.
This link will help. Take your time. There is no set way to work through this.
https://bpdfamily.com/message_board/index.php?topic=136462.0