Earlier quoted context omitted.
See page 204, Mazower, The Greek Revolution, 1821 and the making of modern Europe . Panos Kolokotronis’ widow took up with Grivas which (among other things) set off fighting with the Rumeliotes (which the book details in other places, not sparing Grivas either) NB: I didn't mean that he turned aside from Tripolitsa, I meant I was leaving the subject aside.
You'll have to forgive me, but I don't have Mazower at hand. In any case, I don't know the episode you're referring to but the constant strife in the Greek ranks during the Revolution is well known. It doesn't change the fact that Kolokotronis dealt a serious blow to the might of the Empire at Dervenakia. It also doesn't change the ridiculousness of the expression "real men" used by the OP particularly in the context…
Kolokotronis comes in for a bit more criticism on page 85 when a snotty remark about the Greek people is attributed to him, and later someone tells D. Ypsilantis to kill him, but he is nowhere near the worst figure in the book by a long shot.