The missing apostrophe has been handled already by others. I would ask Pat for a vowel to follow the “R”; probably “E”.
Since nothing is missing, or out of place, I would have to assume this person is either lieing, or a very neat, respectful visitor, or they like to hang around outside of empty houses. I guess I would say thank you, and that I feel the same. I like my house when they are not there.
I’d raise an eyebrow and scoff. Nobody likes my house when we’re not there- our two large, extremely loud dogs wouldn’t be very happy with a stranger in the house.