What would you do?

Got a friend I have known for over 30 years. He is not educated and I am a postgraduate. Until recently we got on well together.
But lately he seems to critcise everything I do and worst copies me. Example yesterday I bought a new pair of reading glasses. Cheap ones. I put them on my desk and went to bed. Today when I got up I looked for them everywhere could not find them. My friend turned up and I asked him has he seen my glasses. He said no. But then suddenly he went upstairs and came down with them. He said they were on the shelf. I know they were not because I checked earlier. Which means he must have had them. What should I do tell him to stop lying and not let him in the house in future or just ignore it.