That's some mighty big talk for a person with Quinn in their avatar.
Jade just got dumped by text out of the blue, so it's only natural for her to be angry. But the only threat she makes there is that she would take him down with her if he talks about her affair. It's not like she knees him in the balls because he turned her down, or anything crazy like that.
If you are going to criticize Jade's anger, and catagorize her actions as troubling, it should be for the scene where she hurls framed pictures of her children at her husbands head when she is yelling at him for cheating on her again. But as troubling as that is, it's still nowhere near the absurd level of crazy that would be required for someone to do something like sneak up on a person and tazer them in the throat until they pass out for no reason other than they thought it would be funny.
So if you're going to make a list of women you should keep you dick away from, the top name on that list aught to be the violent and unstable needle-sharing smack whore that is Quinn.