Don’t Let Him In by Lisa Jewell

He’s the perfect man.

He says he loves you. You think he might even be made for you. Before long he’s moved into your house – and into your heart.

And then he leaves for days at a time. You don’t know where he’s gone or who he’s with. And you realise – if you looked back – you’d say to yourself:DON’T LET HIM IN.