This timeline’s Bush is a far far better man than OTL but he had the right circumstances for it and decades less of involvement in ever-crazier internal party politics lol.
Jennifer Fitzgerald was allegedly Bush’s long time mistress, well known in DC.
As for how many other affairs he had, who knows?
The allegations against Bush in regards to his relationship with Fitzgerald are hardly proven so far as I can tell (supporters of the theory can only point to general suspicions and scattered pieces of "evidence"), and even were it so, this grievous fault shouldn't completely overshadow his general devotion to his family across the rest of his life. The attached Vox article has nothing to do with affairs (also doesn't mention Ms. Fitzgerald), tries to connect him to more grievous offenses by present political figures, and is hardly proof of anything (although those allegations do merit further research on my own part).
Bush is a lightweight loser wimp
with no backbone.
This article is hardly damning proof. For one thing, at no point does the author ever go so far as to call Bush spineless, instead arguing against the the tendency to ignore the faults of Bush in the aftermath of his death. Although I do agree with some of the criticisms of the author, particularly concerning Bush's record not he abortion debate (although he would hardly be the first politician to change his own ideals to fit the times), I heartily disagree with many of his others, particularly concerning the Gulf War, where he tries to argue that it would have been a more principled and intelligent thing to try to overthrow Saddam Hussein in 1991 (because nation building in Iraq would definitely have been much more successful in 1991 than 12 years later (sarcasm)).
While the man IOTL had his faults (and I agree that I prefer him ITTL), he handled the country well in a time of great crises abroad and even if he could not remain above the sinking level of political actions during his time in politics, he generally did his best to be a gentleman and respectable statesman.