That's... really kind of her to assume. I think he knows that she's not real on some level, because he's very aware that he was alone for 45 years, but she was his entire coping mechanism so let's pretend. Even his family is just like 'okay that's Five's mannequin we're just not going to mention it.'

It's a really sweet love story. I'm sure he'll tell her about it some night when he's very drunk.