
In a way it kinda is because many victims tend to go back to their toxic one in there life's believing there's a small chance of change and hang onto the kind acts they did once in awhile.
But at the same time, realistically it should never be that way and it shouldn't be normalized even in fiction, mostly if the story an average life and not a dark ambience (since I'm pretty sure most readers know in the dark ambience stories it's not good)

i mean yes but in real life, those relationships never work. there is no right person wrong time in real life. if something didn't work for some reason once, it wont work tve second or third time.
and i mean in fictional romance especially in the bl genre there are many examples of just that lol. not necessarily saying its harmful but preaching that its realistic is a massive reach.
to anyone who is under the impression that this is realistic, please dont go back to your ex
(its great to like the ending since its fiction but please never believe that real life relationships are anything like yaoi lol)