No I don't think so. Girls have this attitude to "always look good" whether they are single or in a relationship. I guess it's simply normal for us to do everything to look as best and as great as we can be, including putting make up or other stuffs that can make us prettier. Guys like girls who takes care of themselves, so I think it's also a plus. However, girls shouldn't overdo it as well, as some guys prefer our natural look and they find us even more beautiful without any make up on :)