what does "fucked me up proper"mean?
“This has fucked me up proper,” said Duffield thickly from behind his arms. “This has fucked me up good. I wanted to marry her. I fucking loved her, I did. Fuck, I don’t wanna talk about it anymore.”
He jumped up and left the room, sniffing ostentatiously and wiping his nose on his sleeve.
“Didn’t I tell you?” Ciara whispered to Strike. “He’s a mess.”
“Oh, I don’t know. He seems to have cleaned up his act. Off heroin for a month.”
“I know, and I don’t want him to fall off the wagon.”
“This is a lot gentler than he would have had from the police. This is polite.”