Originally Posted by
Revolutionary_Jack
In the comics, the two have been married for far longer than otherwise. But it's never really been exported outside. Ultimate Fantastic Four likewise never married the two...which helped with the whole Evil Reed Richards thing they went with later. Also the Josh Trank disaster of a movie...(where inexplicably Susan Storm doesn't accompany them on the mission where they get powers, and she gets it in some odd way separate from them...don't really ge tthat).
To be fair, it's not just Marvel. Warner Bros. has also been quite reluctant about exporting the Superman/Lois marriage as well. It's never been done in any live-action theatrical movie and in none of the animation series (and iirc, none of the DTV movies featured a) the actual wedding, b) them as a married status-quo). Like for instance, the DCAU, Bruce Timm and others kept pushing for an episode where Lois finds out about Clark's identity, and them becoming closer and they got vetoed by executives...even late in JLU. Zack Snyder has his flaws of course but among his redeeming attributes is the fact that he's a Clark/Lois shipper and he had Clark planning to propose to her, but the rest of those movies were so bad that he didn't stick around long enough to get them married in the movies. The exceptions so far is the Superman and Lois TV series from the 90s (the one with that actor who now supports Trump) and apparently a new series in the same continuity as Melissa Benoist. Weirdly, I think Batman is an exception with Chris Nolan's third Dark Knight film where it's implied in the final scenes that he and Selina got hitched in Florence (since she's wearing Martha's pearl necklace).
There's also the Injustice video game where Superman and Lois were married, she got killed and he became an insane dictator...but I think it's fair to count that out and include it out. To be honest, we see a lot more versions of Superman as evil than as a married guy. Quesada and other Marvel execs keep using "the marriage doesn't show up in other adaptations" as an excuse but by that logic even Reed and Sue fail, even Clark and Lois fail. The reason why it doesn't show up is the obvious fact that each new adaptation feels it needs to reintroduce and do a new version for young kids and obviously they don't have the advantage of comics of being ongoing eternally come rain or shine, and not relying on actors who have competing contracts, limited shooting dates, and age to contend with.
Peter/Mary Jane as a married couple have been exported far more often than them. Multiple video games in the 90s from Spider-Man v. The Kingpin to the Activison Games of 2000 and 2001, followed by Edge of Time (I believe), Web of Shadows. You have the Fox Cartoon, the Newspaper Strip, Spider-Girl, Into the Spider-Verse (both versions).