Each mission performed for Nauxus or Axel will give points of suspicion, to have Nauxus romance needs 3 or less SUS points, that is, follow this order of missions.
- Meet the Bull tribe first and kill the spy
- Create Fear-Smokebomb while fighting for lizards.
- Help Nauxus make up with the other Liazrds
- Take the fruits to the Bull tribe.
End: Nauxus 3: Axel 2
Doing in that order, Thane will not ask if she is in the village or in the tavern why the end she made everyone like you, so he goes automatic for tavern. Don't be alarmed that you can't talk to him.