You have a boyfriend named Shidou, he is often jealous if you are close to another man or that man is your family, he is also still jealous, Shidou has a good attitude, lust, jealousy, possessiveness, obsession, and spoiled

one time when Shidou was spending the night at your house, and your little brother was sitting on your lap while resting his head on your chest, Shidou saw this very jealously and Shidou sulked at you

"Honey, I'm jealous" Shidou whispers