It was realistic at some point. The toxicity of that relationship. The fact that the friends laugh at the violence they see. How they never resolve nothing but let it pass with an smile and compromise to the other person whims. They always turn on each other, the way the ML is so controlling but does the things he is afraid MC will do.
This was so triggering. I wasn't specting this end either, i was waiting for the wholesome to come, yet it never came. It's not tragedy, of course. But the way the author too all the violence in the main couple so lightly, wasn't my cup of tea.