@being1picky1lol I've given a lot of thought to whether or not to include it in the story, and I'm still not entirely sure. However, I can share some lore surrounding the two! >.<
It's a minor detail, but in the chapter "The Trancy and The Faustus", it is mentioned that (Y/n)'s mother, (M/n), was two hundred, while (Y/n)'s father, (F/n), was ninety when they wed. Now, it's important to note that (M/n) is older because she lived for a significant amount of time before finding a way into Heaven. She arrived in Heaven at the age of 110. It was also that same chapter that mentioned how angels are born. They can be "Heaven-born" or "angel-born", with Heaven-born being born by simply emerging from the ground, and angel-born being born vaginally. When (M/n) arrived at Heaven, the reason why she managed to stay for so long without having been caught was that she was Heaven-born. She emerged like most angels, except with an intelligence that they marked off as a miracle. (F/n) was the first angel (M/n) had met, as they both happened to have been born at the same time, right next to one another.
It is essential to recognize that angels are distinct from humans, and being "Heaven-born" or "angel-born" is significantly different from being born as a human. When an angel is "Heaven-born", they may be born at any stage of development. A newborn, a toddler, a teenager, a young adult, middle-aged, or an elder, they can be. The stage at which they are born corresponds to the stage of development their brain is in. Newborns are collected and cared for, and they receive the appropriate education to bring them up to speed. So, (F/n) used to be a little stupid for a bit. Angels are naturally docile and affectionate, so he became quite attached to her, to her annoyance. However, that changed when he realized she got more attention than he did, since angels regarded her as a miracle, and he began to grow jealous of her and her intelligence.