Oh my. That has almost everything that makes up a textbook barney. A flurry of wild swings by the female, comprising of outrageous abuse towards the male's new choice of sexual partner. An exceptional defence strategy by the male (consisting of 'you're fucking mad' and 'don't hit me'). And then, a chink in the armour - the male admittance that he'd shag owt - that opens him right up to a combination of hammer-blows that leaves the opponent reeling. Not only has she been shagging this other bloke, but she actually likes him and fancies him. BAAAAMMMMM!
(and yes, I checked the word 'Gowl' on Google. I strongly suggest you don't)
It doesn't matter how many 'I don't give a toss' counterpunches the male throws now. When she drops the fact that she's been nobbing Billy Big-Chest behind his back, this contest is over. The only thing missing from this row was the male bellowing out a deeply personal admittance in front of the entire world (such as "I CRIED when you said you had that miscarrage and then I found out you were lying, you BITCH!"), but I doubt we'll ever see anything as magnificent as this. In daylight, too. With a pushchair.