I think it's the "grass is greener on the other side of the fence" matter, but I also think that when they look at average eastern european girl they can't tame their dicks, because they are so hot so hence, attractive people can't be bad. It's like with roasties who see an attractive man and think that he has a great personality, even though ignoring the data from dating websites where women pretty much constructed a plot that personality directly correlates with the looks of the guy. 

It's all very sad. I realized that at the end of the day through hard lessons, women are the destroyers of life, aka jews of the gender.