Agreed. He didn't realize a lot of things that you could not rule in Russia well in that era without knowing. He would have been much better off in Holstein, where his eccentricities would not have really mattered. I think he certainly was Catherine's enemy at the end ( not in a personal sense, perhaps), but he may never have really been her enemy, he may not have realized how estranged they were. However, it is quite clear that they were not getting along by that time, and really didn't communicate with each other. This could have been partly why Peter did not know what was going on with Catherine. He was convinced now that he was Czar, he could do more as he wished without being under Elizabeth's thumb. But, he didn't realize as a ruler in Russia in that era, you were never really free. He was never aware of who Catherine was, although he was afraid of her intellect indeed. He got along with her when they were younger when she was less savvy, and more on his level, as in when she first arrived in Russia.She played along with him, but if you read Catherine's memoirs, she seems to state even then, though it might only be hindsight, that she was beyond his level, and during the years that came after that, each day she was advancing beyond him. Those were the days when he wasn't scared of her intellect, but it didn't last.