I kind of like seeing everyone commenting "huur duur beta male is weak hurr durr real men get every girl they fancy" .
If you where in his boots, knowing you can go back in 5 years while not bringing back your loved ones, would you build a harem, mate with everything in sight and leave your children/lovers afterwards ?
But hey, better be a HENTAI MASTER RACE ALPHA RAPE MAN and screw responsabilities.