Personally I think Craig has every right to be mad at Naomie for the things she's been doing. She treats him like shit, or like a child, and when she doesn't get her way she's a Pouty Patty. She also seems to enjoy airing their dirty laundry to anyone who will listen, along with picking fights in a group scenario....and none of that shit is cool in a relationship. She claims to be all "ride or die" to Craig and to the therapist, yet she refuses to take any responsibility for her part/actions that make Craig fired up like that. He doesn't just blow up out of nowhere, there's always a source. It used to be Shep but now it's mostly Naomie. It seems Craig has stepped back from the "scene" (as in, skipping some group gatherings and not caring, dinners at Patricia's, etc..) and it really burns Naomie's ass. She probably expected more fancy parties, meeting "important" people, lots of bar nights, whatever. And Craig seems to mostly be over it. I'm sure half the reason she hooked up with him in the first place was for camera time and dollar signs. Yet when Craig goes to invest his money in real estate suddenly she acts like he's being irresponsible - but he's not. Rental properties can be good business. Plus, since he legally owns the home if for some reason he needs somewhere to live then he's set. Plus we know during filming he was working on his thesis and studying for the bar exam. Going out and partying all the time certainly isn't good for that. The sewing is just filler shit so the cameras aren't just staring at him poring through books or staring at his computer. So what if in his spare time he likes to build things and garden? Those are good skills to have! Naomie is a spoiled brat who doesn't seem to understand that these sort of things are what adults do. Lastly, what does she do with herself? I know she's going for an MBA and all, so one would think she'd be understanding about Craig not being focused on partying so he can finish law school. I also bet that all Naomie really wants is her MRS. degree (preferably with someone of wealth).....then all that fancy education will have been wasted, Has she even said what she plans to do after graduation? Hell.. at least Craig has goals.....and he accomplished them. Can't say that about Naomie.
And PS to southern people.....northerners do tend to speak louder. Maybe not everyone, but it is a pretty common trait.