It is a trait of a needy man who fears he isn't good enough.

I recently stopped talking to a guy who for the most part seemed like a HVM. However it turns out a lot of the things I thought he was doing right ended up getting on my nerves later on. He treated my like the queen I am, used to compliment me multiple times a day and pretty much took care of everything I could ask for, happily too.

That's when I realized he's insecure and really has no personality besides trying to make me happy, like sure that might work if I was looking for a servant but as a boyfriend or husband that gets tiring real fast. 'Too much of a good thing' and all that. Imagine what this guy would have been like with others, one would assume he's taken advantage of every day, somehow that will end up clashing with your interests.