Don't attack him. I don't think it's a good idea to start sentences with: you do this and you do that. Maybe something like: I feel ... when you act in this/that way.

Is he easily offended? If not: it'll be a bit easier to write how you feel cuz you don't need to watch that carefully how you put things in words. If he is, it'll be harder cuz you'll have to watch how you're saying things.