And I'd be reluctant to call every douchey or moody thing a guy does abusive without the proper context. I'm not saying it's acceptable to criticize your gf's accent or gum chewing, but sometimes people can get irritable and every little thing your SO does annoys you. I tell my husband all the time to stop smacking his food, especially when I'm irritated, stop touching me, and every little thing. And the text where he apologizes for snapping at her while she was thumping his neck because he was tired could have written by my husband. Not because he's abusive, but because sometimes I do cutesy little things like that, like tap him or tickle him, annoying stuff, and sometimes he's just not in the mood and tells me to stop. He always tells me later he's sorry, he was just tired or whatever, and hopes I'll keep doing stuff like, that.
I got the impression that the accent thing was more about a put on accent than her real accent, like how valley girls or the Kardashians speak. Again, I know it's unacceptable to tell her to stop talking that way, especially in public, but, again, I'm still reluctant to shout "ABUSE!" Again, I got that it was more out of irritation rather than the need to control. We're lacking context here.
