I like Nixon for attacking the media and for having Spiro the Dragon Agnew do the same, and for 'peace with honor' in Vietnam, but domestically he was a liberal Republican. One of his brainchilds was the EPA. It's like what liberals said about conservatives attacking Clinton. "Why do you attack Clinton when he's the most conservative Democrat in years?" And yet the liberals hated Nixon with all the hearts on their sleeve.
Haldeman was a yes man, as certainly can be showed in this very, very small snapshot. As far as strangeness goes, Haldeman said later, after it was all over, that Nixon was one of the strangest men he ever knew. Many people didn't know it, but every one of Nixon's speeches were memorized completely, which came in handy when he wanted to appear like he was making up things at the top of his head. (Which he actually had no ability at all, improvisation).
When Nixon would make some bizarre order to Haldeman, like one time when on a particularly rough landing of Air Force One at an airport, Nixon exclaimed, "That's it! Now more landing at airports!" Haldeman knew to just wait and eventually Nixon would just forget about his foolish order, as he certainly did in this case.
I can understand that Reagan made Nixon uncomfortable. Dick was uncomfortable around most people, especially those who liked to have fun.
Besides, a person's public persona is so often different from his or her private one that we really have no idea what the basis for Nixon's judgment was.
Maybe Nixon didn't curl Reagan's toes either---in fact, we know that Reagan had political differences with Nixon over things like China, and that could have colored Nixon's opinion of Reagan.