I'm wondering if this is a common theme among others with BPD or if it's a comorbid that has not been diagnosed yet.  Maybe I need to ask this somewhere else. The suggestion of a more appropriate sub is welcomed.   

It has mostly been from females in my life that I get close to.  I'm rather incapable of having a close relationship with another guy.  Actually every female I get close to or have a fight with.  Friends, every SO I've had, family.  From my family, it's in the heat of the moment where they say I'm two faced.  From friends its come up in more casual conversations that I have split/multiple personalities. With SO's it's been both heat of a fight and casual conversation.  

Most of them have said there's clearly at least two personalities.  They would tell me they often knew who they were going to be dealing with as soon as I would walk into the room and adjust how they would approach and interact with me.  

I have some theories on it, but due to my poor financial state and extreme fear of health professionals I haven't been getting all of the help I need.  So here I am asking it somewhere I feel safe doing so.