Before we start let me make some things clear. I live with a fat girl who I sometimes fuck. She is no LTR (cause I learned, that is not my thing dudes...long before TRP) and she is barely a plate even worth spinning. She gets the time of day because she is my room mate. But she has been on me like white on rice, so I have been...sort of testing RP ideas on her

Enter: This guy (Ex BF) staying in my apartment. He might be the object of her affection for a bit. So I want to learn and not be a scared BP pussy....

I would rather analyze it

So my real question...She is inviting her ex over (who is apparently some jacked marine, or so she says) to stay in our apartment for a bit. Frankly I don't care if they fuck. But as a person who is trying to swallow the red pill.... I have some questions

1) What should I pay attention to more, how he treats me or how he treats her?

2) If he wants to flex on me and give me a shit test of his own...I figure I ought to just grin like the joker. Is this right?

3) Should I engage him as another dude or treat him like he is in on the shit test? (I know they have been texting)

4) And this is important I am a very very solitary person, I am very private. Frankly the idea of another person in my space is frustrating. How do I balance my discontent with my curiosity without losing frame?

(PS. I am still swallowing TRP, and had to edit my syntax and diction several times. That alone taught me some valuable lessons about pronouns and shit. Also, this is my RP account and my first post...so please be brutal)