If you take Saenus Lusius or Gaea Artoria these are the Options,,Saenus has a Travel together Option so you Tell Him to Wait Here He still Follows you anyway,,

Wife used Gaea Artoria Kept here Alive,when they come out Gandrung Caverns,Gaea Followed here every where Gaea did not Lock of Player,,Had to Replay and let Gaea Die