Augh! I'm so sorry this happened! Here I thought things would look-up once the post-birth hormones regain control.
I have one of these episodes with my H pretty much every weekend. I don't know why the weekends are so hard. Each time, I feel more and more deflated and less like things will ever work out. I just feel like each breakdown gets added to some invisible points total against me in H's eyes. I completely know how you feel.
All you can do is pick-up the pieces, jump back into the DBing and keep moving forward. My C is teaching me about "reframing" when it comes to H and, when I feel a breakdown (or string of negative thoughts) coming on, to think of the positive things about our sitch (i.e. hubby still comes around, still an active parent, etc.). I know it's sooo hard but, the more I practice it, the more automatic it becomes.
Stay strong and have faith that he doesn't want a D, which must mean something?!
