Such a shame that a couple who once must have been in love, who have a beautiful and hopefully happy little girl together, can't grow up and sort themselves out. It shouldn't matter to either of them if they hate the other one, all they should care about is their daughter's happiness.
Gabriel doesn't seem to have done himself any favours, and the initial reports seem to suggest he started it. It seems odd that after just managing to block Halle's bid to move to France he would start a fist fight with Oliver. Apparently the fight was caught on a security camera, so I guess it's only a matter of time before the footage is made public.