I feel sad with all this, there are some tough words here, and me included, not everyone expresses what they mean in the limited medium of words, so we come across wrong.
If the SO feels truly loved, why would she respond negatively? The words "plain Jane" horrify me, because i know every human being is beautiful, if most of us can't see it. A human tree archetype may grow a hunched back and stagger along the road, but their form still radiates a unique being, the light in their eyes is another soul. I'm attracted to slim, petite, short brunettes with long hair (and a big smile, with big teeth, red riding hood). Sorry, I can't help that. It does not mean I find ugly everyone else, it's just what turns me on, being the wolf'n'all.
The answer folks is to watch Grimm (NBC) and match up your archetypes, rather than chase what the media sees as beauty.