Sure. There was no choice. The hatred towards Vix in the north is large enough. What HM does beyond warring Perdan is irrelevant cause had Vix not aided, they'd be next no matter what.
You flipped, fine, but can you please stop making it sound like you flipped for the betterment of Vix or FG?
You want Perdan dead, fine, but others not agreeing with that and choosing their allies is not a bad decision. Maybe in terms of lands...but there are so many other factors at play.