I don't understand all this hate against GG to be quite honest.
GG is no doodh ka dhoola but take a step back and analyze his two fights. The first one it was Karishma who instigated him by trying to kick him out of the kitchen and the second one Parneet called him a footage artist to which GG reacted.
GG has shown to be the most vulnerable of the lot and it's quite possible that the other two more experienced 'players' saw that and tried to take advantage of his short temper and using him to get 'footage'. Or they could just be jealous of him and Diandra trying to grab screen space with what they consider a 'romance for tv'. Either way in both cases he was instigated and considering his temperament handled it pretty well by walking away.
Arya was the only one who gave him some genuine advice when he told him that he's being targeted and now by the housemates too because he's a sitting duck.
Also remember Parneet called him 'not so smart' earlier and Diandra too told GG that it was Parneet who was mocking their closeness when it was Upen. So their was already history.
Clearly everyone is playing a game, unless GG smartens up he'll keep getting targeted by each and every housemate including Diandra. But as it stands right now, he's trying to control his short temper.
Save the hate for later, when GG actually instigates a fight. For now he's just reacting and in a very controlled manner at that.