Despite a life plagued by terrible luck, Wes has never been one to utter so much as a word of complaint. Rather than dwell on his own troubles, he has instead dedicated his life to making others smile... even if it's at his own expense.
His journey to the Constant itself was nothing if not a tragic comedy of errors. After a series of snowballing missteps, Wes found himself accidentally taking the place of a stranger caught in the grip of a shadowy portal bound for the Constant. His unexpected arrival infuriated the Nightmare King, who quickly exacted his vengeance on the poor mime for interfering with his plans. Wes was banished to his own private prison, far from sight, where he would remain until he was rescued by the Constant's other Survivors (being the kind soul that he is, Wes holds no grudge against Maxwell... though he does continue to give him the silent treatment.)
Had Wes known what fate awaited him on his last day on Earth, he likely wouldn't have done anything differently. In truth, there is a part of him that is happy to be in the Constant with the other Survivors - for who could be in greater need of cheering up than those poor souls?