That sounds fair. She can talk about your relationship from her perspective (which might be quite illuminating to you!) but presenting it as "Because they were mono and I'm poly this happened..." isn't helpful to anyone reading, since you do not currently identify as mono.
(As a hinge with two partners, neither of whom currently have other partners, I can understand feeling overwhelmed at times. But then it needs to be presented as what SHE felt, and it needs to be said that you didn't have other partners, not that you were "mono".)
Pan Female, Hinge in a V between my mono (straight) husband, Monochrome and my poly (pan) partner, ThatGuyInBlack