Thanks, Francie! I need to read your latest -- just haven't had time and work is yelling at me too. But, seriously, I've written a number of stories dealing specifically with your prompt. I think we we see Peter in very similar ways and I've wasted a lot of bandwidth on his perpetual disappointment. Dalia is his first, Royal Guard, a Cheetah, and as I've written elsewhere, she's a huge, very important part of his life and his romantic troubles are, in part, tied to her devotion to him, making her the perfect "mate" except she's a Cheetah. I played with the Mary Sue trope in writing Dalia. In Palace Guard she ends up stepping down as his Guard after about 7 years (and lying about her reasons) because she thinks that his love of her, and the unreasonable expectations she sets, are an impediment to his finding a mate. Dalia is an extraordinary matchmaker and manipulator (in the story you just read, she's with Peter in the tree -- they're first official meeting.)

The second blurb is Peter when he's with D Company of the Ox & Bucks -- I've written Peter as serving in the Glider Corps and D-Day operations at Pegasus Bridge. In the main TSG story so far written, Peter meets Mary Russell when he's only 16-17, she's married and he's deeply attracted to her. She, on other hand, just fails to see what all the fuss is about Peter Pevsneee (she makes a point of always mispronouncing his name) -- which is actually an important point. Eventually, after the War, in an incoherent patchwork of stories, Mary's husband, who Peter was very close to, is bedridden with dementia with lewey bodies, and Mary and Peter become lovers. These scene with the hips and such are my explorations of how that happens -- I've done it a couple of different ways over the years. In the TSG AU, she and Peter eventually marry around 1950, after the train crash.
I'm a frightful bore on the topic, really.