What A Relationship Is To Them

Some (but not all) consider a relationship to be all about them. Their wants and needs, as far as they are concerned, take precedence over everything else. They have expectations of the man that they would never even consider reciprocating - in fact, it rarely even occurs to them to consider it. They are less likely to consider the man's feelings, and some convince themselves that men simply don't have feelings. You'll also see some use weird bits of gender bias and double standards as a weapon to get their way.

Note that this isn't for all of them, but some or all of the above isn't uncommon among their young ages 18 - 25. Funny thing, though - the ones that do that will do as much as they can get away with, so if you don't tolerate their bullshit, you won't receive as much of it.