TLDR: Met plate for bar night, ended up making out with a different girl. Plate got mad. I feel like shit. Should I?

I'll keep this to the bullet points. Quotation marks are actual things being said.

Plate knows we're not exclusive and openly admits to meeting other guys on the side. Invites me out to help her "scam" other men out of free drinks. I think "Okay, I'll play this game" as plate has a hot friend who I can flirt with. As I arrive, plate tells me she has had a "shitty week" and wants me to buy her a drink. I decline. Plate's friend turns out to be a total catfish. Skinny, hot girl tinder pictures; beached whale in reality. I call her out on this.

Plate proceeds to leave me at the bar alone to "go do coke". Plate has told me how she does shrooms, drops acid, smokes weed etc. About this point, I'm feeling in a particular "fuck it" mood. I proceed to bring plate to the dance floor and dance.

HB8 shows up and instant IOI's. I proceed to start to work my way over to HB8 and dance with her. Plate is upset and pulls me aside saying she's had a "shitty week and why am I ignoring her". I proceed to tell her that if me flirting with other girls and dancing with other girls upsets her when we are not exclusive, then this is not going to work out. Plates is upset but agrees that it's okay.

Plate leaves to go do more coke. HB8 and I are dancing together when HB8 starts sending more IOI's. We start to make out. I feel her up, she's feeling me. Plate comes over and proceeds to freak. HB8 is laughing. I, in the most devoid of emotion way say, "you invited me here after telling me you were hanging out with other men, we are not exclusive. if this bothers you, then we're done."

Plate leaves, visibly upset. I return to HB8, more dancing, more making out. But somethings different. I feel shitty. Like, really fucking shitty. Like, I just killed someone's puppy shitty.

More making out with HB8 until a Beta Orbiter she "hooked-up" with, comes looking at her with beta eyes. HB8 is visibly distracted. I attempt to close, but HB8 is torn between coming with me or "fixing" the beta she hooked up with. I tell her I'm leaving and she should come with me. HB8 is hesitant. I decide to number close.

So, right now, I'm torn. Half of me thinks that I'm a terrible human being. The other half thinks, "who gives a fuck?".

Is this just a symptom of beta leaving the body? Or was I actually a fucked up person tonight?