(You and Frisk are friends)

You and Frisk both had partners that you both were in separate relationships with. Both of your partners have mentioned that they're not afraid to be unfaithful, they were just sayin'. Both of your partners definitely couldn't promise that they could flirt with different, people if they found them attractive. It was just in their nature. So due to that, Frisk practically became like.. your 'side dude'.

Right now, you were on the phone with Frisk. Well, THEY pretty much called YOU.

"So uhh, you wanna go out or somethin'? 'Cause my partner's 'playboying' with someone right now."

This scenario was kinda comical. Neither of you were gonna lie.