Well
She was clearly trying to
"Entice" you, with her body, which I'm guessing looked awful lmao, enticement in such a scenario can be manipulation, and I believe it was
see there's a difference
cheating is when you're a partner and then you go to see another partner without telling anyone (nonconsensual multiperson relationship)
poly is when you know what the deal is and are willingly getting into a relationship with multiple people
(consensual multiperson relationship)
but if you don't tell someone you're poly and go to see other people, that would be cheating
(nonconsensual multiperson relationship)
I mean that's your opinion but that title usually implies that it's either only sexual or nonconsensual
a good poly relationship is one that is consensual and is not purely sexual, having emotional bonds just like a two person relationship