I have no idea whether he is gay or straight or bi or identifies as a carrot - nor do I care.
However this 'oh its disgusting he's dating all these young women'...
He may well NOT be dating them at all - its pretty usual for celebs to be asked (or in some cases, told) they're 'dating' so and so this month by their publicity team, manager etc, to either boost their career or that of the other person (or both ideally).
Then they may be told to have a meal here, party there, attend xyz functions together - break up etc.
And the things press photographers are told to attend are hilarious too... 'so and so will come out of x shop at 10:15, turn left and walk to a car ... ' or 'thingy will be walking their dog this morning then going to the gym'... and sometimes 'thingy' and 'so and so' are A listers and its big news... and sometimes they're Z listers and its not.... or it is but only because its the slowest day on earth..
Its all bullshit, smoke and mirrors, you scratch my back and ill break up with you dramatically so you get huge sympathy from the public right before your book launches...
Top tip - hang around in press lounges being invisible as a runner or general dogsbody.. you hear a LOT!