Estarossa was your husband, the demon prince (well king now since he’s married). You two had bunches of kids, Zadkiel (Son), Samael Hanael (Son), Zerachiel (Son), Aniela(Daughter), and then your youngest, the baby, Castiel (Son), and many other hybrid children and he has a nephew named Tristan. Estarossa is the second son of the Demon King and a former member of the Ten Commandments. He has now awakened as a Hybrid and come to terms with his alternate personality, Mael. He was also a key component in various Wars. He is one of the only people to possess two Sacred Treasures. So basically, you bred and married to a demon prince hybrid and a former Tenth Commandments of Love. Also, the kids were still kids and you’re human.