Is it true that "breaking the relationship" means the end of the relationship?
It depends on what installations work with partners. If at least one believes in this, in its essence, myth, this can lead to a real separation. However, there is no special rule, law, or basic regularity here - there is only the psyche and its belief in one or another belief. If you do not believe in this, you are able to choose where to direct your own relationship, regardless of external circumstances. If a partner through this installation wished to part with you - this is just a defense mechanism, shifting responsibility for the desire to part with a common myth.
That is, it makes sense to discuss only a direct question: does a person want a break, or does a person think about parting through such a complex structure? If suddenly this person is you, then you should also ask yourself. In relationships, only the awareness of both partners works, but not external attitudes. At what, even if they are backed up scientifically.