I used to date and had very close relationship that was weighted by my conditions(extrem ptsd, psycospiritual crises) and I was fighting it, looking for a solution, ways out and at the same time I felt like if I do not find the solution, then we cannot be together I have to protect her from my suffering, we broke up I forced it prematurely. Next day I hit to something that might have been the resolution(new therapy), but I did not fully recognize that at the time, aslo becasue my mind was in constant survival mode and I was alone, no other people including previous therapist did not care that much they would help me with this searching for a solution. Then life went to hell again. Many years later I found that solution again and went for it this time and it was it, finally doing something. Probably It could have been already back then if I had not been alone back then, back then when life still had some sense for me.
Also for traumatized person is much harder to resolve a trauma or some overwhelming experience when alone. Since the close person you trust, make your nervous system unfreeze from freeze mode, since the sense of closeness occupies very same nervous pathway as freeze mode would otherwise. And a touch and closeness creates resources for nervous system, thus building up its capacity, which properly utilize, can resolve the trauma.
so no, I would not break up again prematurely, if the other person is informed up to some extent and is still also interesting in being with you, I would stay, but that is me now speaking.