Women use online dating
The preference of people for mate selection has been extensively studied [18,19,20,21], such as the preference on education level , age  and race [24, 25].
The matching pattern or the choice for potential mates, shows a homophily phenomenon [26, 27], that is, people prefer to choose mates who are similar to themselves. First, similar people are more likely to have the same hobbies and reach the same places, thus it is easier to see each other .
Another research found sex-related differences in communication patterns in a large dataset of mobile phone records and showed the existence of temporal homophily .
From the perspective of evolutionary and social psychology , the difference in parental investment strategies determines the different mate selection strategies for both sexes .A recent study on a major North American online dating site found that anonymous users viewed more profiles than nonanonymous ones, however nonanonymity can achieve better matching results .Economists usually study mate choice and marriage problem from the perspective of game theory and strategic behavior [30,31,32,33,34,35].Besides, one survey found that marriages initiated through online channels are slightly less likely to break than through traditional offline channels and have a slightly higher level of marital satisfaction for the respondents .Mate choice and marital decisions, because of their importance to the formation and evolution of society, have drawn wide attention of scholars from different fields.