*SPOILER!* Do Du think Gemma was trying to set Siobhan up?

It was Gemma that called and asked to meet Siobhan, saying that she thought she knew who was having an affair with Henry. And when Siobhan/Bridget left to meet Gemma, she got attacked. Do Du think that Gemma set Siobhan up to get attacked? Maybe she now wants revenge on Siobhan for cheating with her husband, and is in on it with whomever attacked Siobhan?

Tell me what Du think!