A typical "nice guy" is perceived to put the needs of others before his own, avoids confrontations, does favors, gives emotional support, and generally acts nicely towards women. – Wikipedia
In their qualitative analysis, Herold & Milhausen (1998) found that women associate different qualities with the "nice guy" label: "Some women offered flattering interpretations of the 'nice guy', characterizing him as committed, caring, and respectful of women. Some women, however, emphasized more negative aspects, considering the 'nice guy' to be boring, lacking confidence, and unattractive." – Wkipedia
I am going to attempt to define the 'Nice Guy Syndrome' in an accurate, truthful sense.
Firstly, I want to define the adjective 'nice'.
If I perceive that someone is being nice to me, it means that I believe they are acting with kindness towards me, that they are being genuinely caring and respectful towards my needs and desires in some way.
Therefore, a nice person , is someone who is consistently displaying genuine care towards another. In my opinion, it is pretty much synonymous with being a humane person.
As I understand it, a humane person is someone who can understand that the world is an enclosed, shared environment, and believes it to be in their own self interest that those around them are genuinely happy and healthy, in order to maximize the potential for that environment to be the best that it can possibly be.
Although the main motive may be self interest, it is not self interest in any negative sense, since it is simply acknowledging the fact that because we are all humans, we all share the same base needs.
I am characterizing the 'nice guy' as a person whose intentions are genuinely humanistic. An Outline of The Nice Guy
'The Nice Guy' is someone who acts with humanistic intentions, and is constantly taken advantage of by everyone around him. He is especially vulnerable to those who claim to love and care for him, because of his own belief that this is truly the case.
He is constantly 'lead on' by people whom he wants to pursue a meaningful, loving relationship with. A person who is using the Nice Guy will be consistently sending him signals that they are interested in him, value him, want him to be committed to them, but in truth, has no actual intention of reciprocating any of the love that the Nice Guy gives to them.
The Nice Guy sees his loved ones as, more or less, extensions of himself, so he puts great effort into the relationship because he believes that the other persons happiness and well being is connected to his own. This feeling is never truly reciprocated by people who only mean to take advantage of the Nice Guy's offerings, only feigned.