What I took from the whole venue thing was that he did not travel with the rest of the team. SEN probably told him to stay in his hotel because they wanted the rest of their management team with the roster, he ended up meeting up with friends, one of which was the one his ex accused him of cheating with (don't think he did). He went to the venue with those friends and tried getting them in. One of them already had a VIP badge but the other didn't. He said something about Riot Security saying no, and after that he just went back to one of his friends apartments. If you look at the VODS of his streams a few days before the match, Sick was acting very very strange. My guess is that the SEN team thought that he was disturbing their practice time and didn't really want him around before the match as well.