>>116453757It depends on the writer, obviously. In the Silver Age, he was pretty good about working with others. He started to wind down in the Bronze Age, and then the Dark Age of Comics happened, particularly The Dark Knight Returns. Even then, there's still a clear divide between Pre-Crisis and Post-Crisis Batman. Pre-Crisis Batman was pretty much best friends with Superman. Post-Crisis Batman made their relationship somewhat more antagonistic.
I feel like Batman's notoriety as a difficult-to-work-with loner is somewhat contradictory. Batman, in most cases, tends to have strong working relationships with a number of different individuals, including his butler Alfred, Commissioner James Gordan and the various Robins. How well he gets along with the Robins, though, is again up to the writer. Originally, Batman and the first Robin, Dick Grayson, parted on amicable terms. Though Dick was tired of living in Batman's shadow, there wasn't really much in the way of bad blood between them, and Batman continued to show concern and respect towards Dick henceforth. But that all changed Post-Crisis, when they made it so that Dick parted with Bruce on a far less positive note, and it took a while for things to be patched up between them.
Batman is an extremely divisive character, especially when it comes to those who write for him. Some writers want him to be a dark, broody, cynical misanthrope who can't get along with anyone. Others want to lighten him up a bit, and even if they accept that the current broody loner is what Batman is now, they still want to just make him a little less sour and depressing. Given a couple decades, I'm sure the status quo may very well change once more.