The plan was set in stone at that point. Rose was supposed to go for that dinner with Sid and co keeping a close eye on what was happening. Although close eye meant at least a hundred meters away from Andrew and Rose, Sid wasn't okay with it. So, he was literally next to them when the others were abiding by the rules set.
Sid knew exactly what Andrew was planning when he got to hear the two talk. While Rose spoke about Sid and wanting Andrew to sign a paper saying that he has no complaints about the smack, Andrew was out here trying to seduce Rose.
Sid had the urge to go in and beat him once more, but he stopped himself from doing so because this was out in the open and things are gonna get even more messy if he was to get caught on camera here. So, he did nothing but listened.
