Hah, I've found this in myself. It feels like I'm a bit more of a jerk in Russian than in English—at least I'm more likely to let irritation show. I'm less visibly irritable in English.
But it might also be a difference in contexts: I mostly speak Russian with my immediate family and English with other people.
But it might also be a difference in contexts: I mostly speak Russian with my immediate family and English with other people.