10 Times The Justice League Ruined Superman's Life
6. Letting Batman Date Lois Lane - Various
To get this out of the way quickly: there's nothing directly wrong with Batman dating Lois Lane. In a world where Lois Lane wasn't the long term partner of the Man of Steel, nobody would bat an eyelid at the pair being together - in fact, it'd arguably be kind of sweet.
However, Batman dating Lois Lane after him and Superman get amnesia, or otherwise after Superman and Lois have a terrible break up is another thing entirely - and yet these are the exact set ups of Batman/Superman #16 and the animated World's Finest series. All of this isn't even counting the Superman's Girl Friend Lois Lane series, where the reporter makes out with literally every member of the Justice League - but that series is also the most immoral thing in the world, so those super-smooches maybe don't count.
The amnesia thing is almost understandable, as Batman literally doesn't remember that he's flirting with his best bud's romantic other, just as Superman has a moment or two with Catwoman. But, given the Justice League should know what's up, it seems weird nobody thinks to give them a quick text letting them know what's up. Too busy with 'important' things like saving the world, we guess.