I think Obama can certainly be given credit for that.
Those white women 10 years older looking for Mr. Right are probably starting to realize that many “Mr. Rights” can’t find stable employment (at least in terms of providing for a family) because 1) the economy stinks, and 2) it is practically illegal to educate or hire a white man. Both of these are sufficient reason to explain why the average white guys will vote against Obama, and the former explains why many white women will as well.