Conversation

When you can plainly see that your work output maintains a higher standard than someone else's, and you're a terrible liar, and you need to have meetings with that person, that's not a good situation to be in.

I told him that I think we are having some communication issues, but the problem is more that he doesn't understand me, and feels very insecure about it.

Maybe he's uncomfortable because he's older than me and has worked there for much longer.