She is most certainly being bullied, she's also quite stressed by the looks of things.
How many female bettas are in the tank? and how large is the tank?
I think in this case your widows are probably the bullies but having less than three female bettas in one tank usually doesn't work out because there arn't enough bettas to form a pecking order, so one gets bullied all the time.
I never keep any less than four females to one tank.
Also make sure you have alot of hides.
Your other girl flares at herself because she thinks it's another betta and she's asserting her dominance.