But to remove all doubt that he had an evil reputation both for shameless vice and for adultery, I have only to add that the elder Curio in one of his speeches calls him "every woman's man and every man's woman."
see Section LIIor Section 52
The issue here is not whether innuendo suggests some historical figure might have been gay - it's whether it can be conclusively asserted as fact that a historical figure was gay, thus meriting his or her inclusion in Wikipedia's "confirmed" list along side people who have conclusively admitted that they themself are gay (e.g. Rosie O'Donnell). For Caesar, much like Alexander and dozens of other historical figures on that list, all you've got is innuendo written centuries later that at best says "maybe" - not "confirmed."