Almost half of men in U.S. would break up with their girlfriends if the girls gain weight, compared to only 20 percent of women who would do the same, according to a survey quoted in media reports Wednesday. Askmen.com in partnership with Cosmopolitan.com surveyed a group of 70,000 people on whether or not they would dump a partner for weight gain, amongst 38 other relationship questions. As high as 48 percent of the men answered \"yes\" to the prompted question \"Would you dump a girlfriend if she became fat?\" Of the women who were asked the same question, only 20 percent responded \"yes.\" The authors said the purpose of the survey is to \"shed serious light on how the modern man thinks and behaves professionally, romantically and in his downtime, in 2011.\" Another shocking discovery is that 50 percent of men lie about how many sexual partners they have had compared to 35 percent of women who lie.