Sora_Kamiya
When it comes to character development in shounen-ai and yaoi, the decision on which character will have the mysterious past or dipression-inducing condition includes but only two options: the Seme and the Uke. Which do you think ends up being the one who needs the cheering up, the seme or the uke? I think it usually tends to be the seme, because seme's are usually depicted as being hard-boiled and emotionally repressed.
Depends on the person, and the story......