I wouldn't hide it. I wish my last boyfriend and I had both known that I was BPD so I could have gotten some help when I started to get irrational. It got to a point where he couldn't handle the meltdowns anymore. He would have stayed if he had known that my behaviors were part of this thing called BPD and that it was something I could get help for. The label wouldn't have scared him as much as these unexplainable negative behaviors.

The horrible thing about BPD is how we internalize everything until the suffering becomes unbearable. You're making the choice to continue down that same path and it's not a pretty one.