Did you go far enough back, also i think you need to have a high amount of like points in order to choose him.
well i redid my save and now im stuck n 9 likes for him while bernards at 24
try working out with, that how much he likes you. You may need some strength potions tho.
i had to restart all the way from the bandit camp since i encouraged him to go so i could see bottom logan.
