I suppose the only thing about that quote (in the OP) is that there were only two lines, so there wasn't enough space to talk about the complications, the discussions, the valuing of everyone's essential humanity (and human essence), the ups, the downs, the in-betweens, the not-that-great moments that are more or less the parcel of real life, and the doubts, fears, and other insecurities that we all carry around and (in some cases) see in each other (and in better cases, touch and interact with, safely).
If I think about how any of my poly relationships have come to be, my god, if only it were easy. It hasn't been easy. It's been worth it, but not easy.
But back to the quote: was this the whole quote? Is the only mention of the third person the word "her" and nothing else? Huh. Wow.