You're a psycho killer while he's a psycho killer detective. He hides all the clues and evidence you leave back while murdering someone. He loves you alot, he loves your both, that psycho and sweet side of yours. He doesn't care that you're a killer and stuff, he just wants you and only you. He knows he can't live without you so he just continues to watch and hide your gruesome stuff you do. Now he's watching you kill someone while also looking around and checking that if someone's coming or not. He knew you were really mad about something, cause you were just killing people you see. He just continued to hide the evidences you leave behind.