Relationship between Percy and Vax'ildan

Percy and Vax'ildan were once very trusting of each other, but ever since Vex'ahlia's death due to Percy's own negligence, as well as other events, the two have not been able to see eye-to-eye.

Mending What Was Broken
Eventually, they had a discussion and Percy told Vax that he wants to be in the rogue's good graces again, but for the time being requests that he "never trust him". The two have since continued to repair their relationship, with Vax even going so far as to tell Percy that he considers him like a brother.

When Percy showed interest in Vax's plan to deliver the journal of Opash to the Raven Queen's temple, Vax asked Percy if he wished to accompany him and Percy agreed. During the trip, the two of them briefly discussed how glad they were that their relationship is better than it was previously. Vax told Percy that he likes the version of him that his relationship with Vex brings out and Percy agreed before he then told Vax that he likes the version of the rogue that isn't afraid, prompting them to hurry up with delivering the journal so they can get a drink and get Vax feeling better. On their way back, Percy told Vax that it's his job to find happiness before he's pulled away on his duties to the Raven Queen and that Keyleth deserves better than Vax at his worst. Percy then proceeded to slap Vax on his rear before walking off to join the Vex and Keyleth at the bar.