I love Suicide Squad but they got the "relationship" between Mr. J and Harley so completely wrong. And it annoys me to death how everyone who's just now jumping on the fantastic Fandom thinks they're the most romantic couple ever
John Allison draws my favorite Marvel couple (man, they get crap from everyone) Please, please visit: http://www.flickr.com/photos/scarygoround and scarygoround.com for more greatness (all rights reserved by John Allison and scarygoround - no images are mine)
I'm not especially into couples or romance in the comic book universe, but I found many of these intriguing to read about. Though many end tragically, it is clear that there is some powerful, more realistic love in many of these relationships.