If it is true to abuse he should actually be a bit nicer to her now once she has apologised for making him hit her and promised to try harder
Abusers are not horrible all the time or the fact that they are total wankers would be glaringly obvious. Also if they are not nice after they hit you then it is impossible for either party to believe they won't do it again.
I am hoping but doubting that Hellin is one of the women for whom being hit is their red line. (Which is why a lot of abusers only engage in deniable violence like 'accidentally' pushing you over, hurting you whilst trying to 'calm you down').
So, the usual pattern in the cycle at this point would be to get Hellon to shoulder at least 50% of the blame. Agree to both be nicer for the time being.
In which case hopefully we can hear some other Archers stories. Even I am finding it dominates too much now.