Threaten to break up

That’s an unhealthy and manipulative behavior. If she is unwilling to change this, then it might be worthwhile to take her up on the offer. You guys should try to see a relationship counselor before it gets worse. Or, if she refuses, then just let her go. That behavior will only lead to worse and worse behaviors

I’m not a professional but I feel like it’s a childish reaction that stems from something during childhood. I had a partner who did this and his mother left him when he was a toddler. It seemed he was reacting to arguing with me in the same way he reacted when he was five and learned his mother would be leaving. Un healed and un-dealt with childhood trauma. Agree with above post re: taking her up on that offer. I did that with him and he learned; I didn’t do it to make him learn but to protect myself from having to go through that pain of the threat every time. He felt remorseful and it was evident he didn’t mean it. Don’t give in to the fear of an empty manipulative threat fueled by unhealed trauma

She is scared that you might leave her , she is terrified of being left alone so she wants to avoid being left .. however eventually she won’t leave you at the end and if there is going to be a break up, you will be the one to walk away.

In fact here the problem is not who is going to leave first, problem is that she can’t communicate well, she can’t tolerate complex conversations and complex situation.

Try to help her be more patient in life and I guess you can’t do more than that… she has to work on herself