I think Liam's relationship with her contributed massively to the breakdown in Liam and Noel's relationship. I can remember Noel doing an interview with Zane a few years back and Zane told Noel that Liam had been really complimentary about him when Zane had interviewed him.
Noel shut him down and said it meant nothing to him, as he would be on Twitter saying the complete opposite, playing to the masses, and then Noel said when it matters and he's abusing my wife and daughter it's different. It surprised me as up until that point I had wondered whether both of them had manufactured the break-up to some extent but it was obvious by Noel's tone that there is a lot of genuine bad feeling there.
Whether that will change now that Noel and his wife have seperated remains to be seen. I suppose it depends on whether their break-up was amicable or not.