I don't think Ian is being very considerate towards Jane's feelings at the moment as he plots his revenge against Steven for accusing him of trashing his stall. Jane is obviously still petrified of Steven, and who can blame her?. Ian should have handled the whole CCTV thing without involving her. Seeing Steven wreck his own stall on the video must have worried Jane as he is obviously still not the full ticket and he is based right outside her back door.
I've got no qualms about anything Ian has done or said to Steven but I do think he should be a bit more discreet where Jane is concerned.