Lets be honest, every tv show or movie that has this kind of Relationship between two characters...brings rumors.
Bones, Sleepy Hollow, The Blacklist, Once Upon A Time, The Walking Dead, Game of Thrones, Man of Steel, The Dark Knight, Captain America etc
The list goes on and on.
Its either that the actors hate each other or that they have an affair...its typical stupid gossip.
I can understand if they dont get along any longer...but i absolutly cant believe the rumor that Stana Katic was bullied by Nathan Fillion till she cried.
Again i only can go with what i saw of them due to Tumblr etc.
Stana Katic seems to be the kind of person who would rip somebody a new hole if they would be too mean to somebody.
So its hard for me to believe that she would take any kind of harrassment without standing up for herself.