When you pamper a woman you only encourage her to become temperamental. 脾氣 is neither a disease nor a psychological impairment. 脾氣是一種修養 - an upbringing.
As for 溫柔, anyone can pretend to be gentle. Men are very good at pretending to be gentle [to a woman] when they want to get into her pussy. Being gentle is definitely NOT the natural character of a man. Gentleness is a character that is inborn and it's exclusively a trait that only women can possess and only some women will possess. If you pamper her, you will erode that gentleness in her and after awhile bitchiness will conquer her.