about me: so i have been professionally diagnosed with manic-deppresive bipolar disorder for about 7 years now

my roommate (also my current FP) just got diagnosed as Borderline a few months ago

so apparently bipolar disorder and BPD share a some commonalities, the main different being that one a mood disorder and the other is a personality disorder (google if you dont know the differents) 

so roommate comes back from the therapist and we start basically comparing notes from both our issues and are pretty confident our diagones are correct

except for one thing on my end, I had never heard the term "favorite person" described quite in the way borderlines use it, and it fits me perfectly. I can even make a list of past FPs. The only real difference (maybe) is I do feel like I see my FP as human and accept their flaws as part of the deal. Other than that they are not just my best friend they are someone who has the ability to make or break my day, week... life. They are like a drug, and I can get so mad at them and still not  want them to leave... &lt;well you guys know&gt; 

……………….so does this possibly make me borderline? or can bipolar people have FP to? I couldn't fine anything on google about bipolars and FP......