Well, Batman is all about order and justice in a very practical, no - nonsense way. Constantine, on the other hand, is more of a chaotic figure. He uses magic which is unpredictable. So Batman might be constantly frustrated with Constantine's unorthodox methods.
One interesting storyline could be John Constantine and Batman teaming up to fight a supernatural threat that's terrorizing Gotham. Maybe a demon is possessing the city's criminals, and Constantine's magic along with Batman's detective skills are needed to stop it.
There was no clear information on the specific reason why John Constantine did not shoot the second season of the American drama. There were some speculations and discussions about the second season of Constantine, but there was no conclusive answer. Some of the reasons might include insufficient funds, poor ratings for the first season, and the problem of the lead actor's schedule. In addition, in 2014, NBA announced that it would not renew more episodes, which may also be one of the reasons why the second season was not filmed. In general, the specific reason why Constantine did not shoot the second season of the American drama was not explicitly mentioned.
In the comics, John Constantine's sexuality is indeed shown to be bisexual. This aspect adds depth to his character and is part of his complex personality.
The 'Hellblazer' series has many great Constantine stories. For example, 'The Family Man'. This one delves into Constantine's past and how his family history and his own actions have consequences. It's full of dark magic, moral dilemmas, and Constantine's signature cynical humor.
John Constantine in DC Comics is a master of magic and trickery. He's constantly dealing with demons and other supernatural threats. His character is a blend of bravery and cunning, making him a fan favorite.
One great 'John Constantine Supernatural Fanfiction' is 'Constantine's Cursed Case'. It has a really engaging plot where Constantine teams up with the Winchester brothers in a way that feels true to the characters. The author does a wonderful job of capturing Constantine's snarky attitude and his unique brand of magic.