Do girls find attractive when a guy doesn't complain? And if something bothers you, what's the right way to complain without losing attraction?

I have noticed in a relationship that the less i complained and acted like i don't care about things she was doing the more obsessed and sweeter she was with me.

I've also tried the opposite with another girl by saying exactly what bothers me every time and i noticed exactly the opposite reaction, then when i changed my behavior and started to act careless, she started to get obsessed...

So i'd like to know what's the way girls think on this and how you view the man in a relationship? what's the most attracted behavior of a man towards you?

Do girls find attractive when a guy doesn't complain? And if something bothers you, what's the right way to complain without losing attraction?
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