So IF he wasn't being hit why did he ring the police?
I haven't given any EXCUSES for her behaviour, I have given a possible REASON for it to try (in vain it would seem) to explain to those who are wrongly labelling her as guilty (even though a court of law had not yet deemed her as such) that things can be far more complex than they seem, and so to say she was guilty as fact is wrong. She may not have been, even if she DID hit him with the lamp.
I use the word IF as we don't know for definite she did it.
His reasons for ringing the police if he wasn't hit? No idea - that's for him to tell, for me to give a reason would be pure speculation, just like you and others keep giving.