Seems to me if she wanted to break the marriage she could in a heartbeat. Even tell a bullshit story to the cops and have you removed from the domicile, it happens all the time.
Instead, she's playing head (and heart) games, being obnoxious, grasping at anything she can think of to drive you to walking (running) away thinking it's your fault. It's not
Makes me wonder if she has a plan, just playing it by ear or just irrational?
She hasn't rolled across the room like a hoop or projectile vomited yet, has she?