Definition: A nice guy is an informal term for an (often young) adult male who portrays himself as gentle, compassionate, sensitive and/or vulnerable. The term is used both positively and negatively.
1. I don't need a pushover
There is nothing wrong with giving a man direction and then having him learn how a woman likes to be treated in a relationship. But if this man has no self identity and just allows himself to be walked all over by everyone in his life, I don't need a pushover. A man that can handle his own and take care of his woman, is what helps him be a man.
2. If he is more sensitive than I, no thanks
Nothing wrong with a man who cries. But if every joke that I make ends up with the man crying, or hurt... I may have to rethink who is the woman in the relationship.
3. I don't want a man who needs me to dictate his life
I don't have to tell my man what to do and how to do it. A man who is able to take care of himself and support me will know what are the best life choices to make in order to accommodate the relationship.
4. Emotional support versus emotional dependence
Again, if my man cannot recognize that I am not the only source of happiness that he needs to have, then that relationship will turn to one of emotional dependence.
If I can't go out with friends or have my own hobbies, then a man like that certainly shouldn't be in a relationship with anyone.