What Sister-In-Law, That's My Boyfriend

[Force attack has a bad temper, bad personality, and violent tendencies, but this will change later. Song Qiyu lost his memory. A man said that he was his boyfriend and he went home with him. Then he discovered that his boyfriend always smelled of strange perfume, and he suspected that there was something wrong with their relationship. But the housekeeper said he loved him very much, so he started being nice to his boyfriend. After his unremitting efforts, his boyfriend finally changed his ways and stopped messing around with women. Until a family dinner, a man punched his boyfriend in the face, took his hand and said affectionately that he was his boyfriend. He was confused, whose boyfriend was he?