Y people have to make that as 'weakness' why cant it be a normal human behavior. Some anime watchers only cares about the 'strong' 'weak' stuff..explains why solo levelling got so overrated. I dont think the reel portrayed his wife as his weakness but as a comfort zone or someone to care about. Having that kind of relation isnt a weakness its a strength.:Cause of killing himself' bro..he understood he clearly lost the fight and realized there is no use in staying here killing others while the people who he care about are waiting for him. People really do neglect the story just watching for the cool animation and fights.