I just figured PP was a tomboy. In my teens in the 60's I had a girlfriend who was a tomboy, climbed trees, got dirty, played baseball, knew how to fight. She also was a terrific kisser and at least in those years there was no doubt she preferred boys. We just assumed she did "boy things" because it gave her greater access to the "boys".
If she turned gay, it certainly wasn't on my watch. :-)
Yeah, I had one like that. Until she dumped me for another woman.
But, you’re probably right about your girlfriend.