I think that most of us here started by asking "why?" In fact, I think that's how most of us ended up on these boards. It's natural to try to understand when our lives are turned upside-down.
Many of us have also made the statement, "But, she seems so normal to everyone else" or the like. That's because people who are not intimately close to someone who suffers from BPD do not trigger their intense emotions.
I just cannot make peace with the fact that besides being bipolar and having PTSD and OCD she also have borderline personality disorder
It's possible that it isn't an "also." It is possible that she's been misdiagnosed. But, the actual label is not as important as the fact that she has traits that you can recognize. This really isn't a bad thing though unless you make it out to be. Understanding the traits allows you to make an informed decision. You can choose to walk away, or you can choose to learn to do things differently so as to work within the parameters that come with her.
In the sidebar to the right, there are some great links to help you get started on working within those parameters.
