Detested his wife? Really? On what do you base this?

That $$$ was an issue for GW's decision to marry Martha is commonly accepted. That it was the PRIMARY issue is very debatable. That it was the ONLY issue is something I'm not sure any respectable historian would sign off on.

Most marriages prior to the Industrial Revolution (and even many after that) had money factored into the equation -- at least in some way or some degree. Marriage was seen as a financial joining of households and families. And, given the lack of social safety nets and such, security was a major consideration.

As to GW being a "non-inheriting secord or third son"... He had half-siblings from his father's first marriage. He was closest of course to Lawrence Washington, his older half-brother. But Lawrence had died by the time Martha came along. And GW already had custody of Mount Vernon when he married Martha. His ownership was confirmed when Lawrence's wife (now remarried) died.

Getting back to the allegation that he "detested" Martha...

There just isn't any evidence for that. Was she his first love? No. Did he have money on his mind when he courted and married her? Almost certainly. But did he "detest" her? My goodness. There's just no evidence for that at all.

Indeed, one of Washington's generals wrote a letter to his wife in which he said that General and Mrs. Washington were very loving toward each other. "Nathanael Greene described them in a letter to his wife, saying, “Mrs. Washington is excessive fond of the General and he of her. They are very happy in each other.” Oh, and that was 20 years into the marriage.

You can say a lot of things about Washington. That he detested his wife isn't one of them. Sorry.