
In the novel the MC was reading, Aunt was the FL and uncle was the ML. But it was an 18+ story with a lot of angst. Also, spoiler....
.
.
.
.
.
The ML (father's brother) only managed to find the princess after she died and blamed the FL (mother's sister) for it. So FL suffered a lot in the OG novel before they ended up together. ╥﹏╥

Uncle X Aunt X Blue haired knight is the main love triangle. (Blue haired knight is the MC's knight escort) Red eyed child X Baby MC X Blue haired knight's toddler nephew is the other puppy love triangle. The romance part is only between the adults. (as far as I have read) The kids and MC are just wholesome and cute.
Yes. Yes! HELL YES! IT'S ONE OF MY MOST FAVOURITE NOVELS! I AM SO HAPPY! (/T▽T)/