system
Given the following post, respond as if you're commenting on Reddit:
human
[MARVEL] Why are Sue Storm and Reed Richards always getting divorced?

They are getting divorced in Fantastic four life story, divorced in the ultimate universe, Spider man life story.

If they are supposed to be a family why is their relationship always I  the rocks?
gpt
Their relationship has often been strained, particularly when Reed becomes focused on his research and ignores her. In the 616 universe, they have been separated once or twice, but always came back together as Reed realized Sue brought balance to his life.

In the Ultimate Universe, Reed was far more cruel than his 616 counterpart. He had no problem killing his enemies, and consciously decided morality was a restriction in his scientific endeavours, thus becoming the evil Maker after Secret Wars.

There is actually a canon reason why so man Reed Richard counterparts are indifferent at best or cruel at worst. Reed Richards-616'a father was Nathaniel Richards, who later would travel to Earth-6311 and father a child there, and that child would be the ancestor of Kang the Conqueror. At one point Kang was eliminating many dimensional counterparts of himself from ever existing, and abducted hundreds or even thousands of Nathaniel Richards, and had them do battle to the death until their were only two left, "evil" Nathaniel and Nathaniel-616. Nathaniel-616 contacted his son Reed, who was in college, as well as Ben Grimm and Victor von Doom, and they worked together to defeat evil Nathaniel. As a result, only one Nathaniel remained, the strongest survivor who eventually become the ancestor of Kang, and there would be no competing Kangs to descend from alternate Nathaniels. 

Unfortunately this had the side effect that almost every version of Reed was orphaned while a child, and did not have the love and guidance of his father growing up. Because of this, most dimensional versions of Reed tend to be more scientific minded but indifferent to the events of the world, not necessarily evil but not as caring to the state of the universe. Most of the members of the Council of Reeds are like this. Another effect is that most Reeds are not able to form the loving bonds of family and friendship that Reed-616 can, thus never marrying or having a family, and also never fathering Franklin or Valeria. And due to the scarcity of Franklin, there are few who had the infinite power who could have restored reality after the destruction of the multiverse during the Secret Wars. Thus Franklin-616 was pretty much the only one available who could restore the multiverse.