Sumpthwyn

Sorry, I'm sure this has been asked many times. I married Borgahk the Steel Heart and had her as a follower. She got bored and went home. I completed my mission and fast traveled. Then waited 18 hrs and she never showed. I did some smithing, cooking, alchemy and fast traveled 2 more times. She never showed. Went to her original home, no luck...although I did get to kill a dragon. I have been able to get another follower and no courier has shown up with an inheritence letter. Do you think she is dead? Or is this a glitch? Any help is appreciated!