Well, I was the one who broke up, after she broke up with me for two times and got back together. The funny thing is, she killed my potential romantic partner before I killed her. I think I told this dream here but I can't remember. I think I'll give the full version.
So, I'm sitting on the beach with a girl I may be interested in (don't really remember) and it's night. I make a few jokes, make her laugh, etc. Then suddenly my ex shows up, kills the girl with something like a machete. Then she throws the machete at me and catch it in mid-air. Then a police spots us, with the bloody machete in my hand. I panic and I run into a bungalow nearby. I get in from the window and to the bedroom. I notice a girl, wearing a bikini. When she notices me, with a bloody machete in my hand, she starts screaming. I try to shut her up but she doesn't listen. Before her screams attract the cop, I slash her throat and hide in the wardrobe. My ex-girlfriend enters the wardrobe and hides too, which makes me angry. Cop comes, checks the corpse, takes a look around and leaves like everything is fine. He kinda acts like a guard from Oblivion or Skyrim. Anyway, after he leaves the bungalow, my ex and I come out of the wardrobe. My ex says "heh, that was close" or something like that. She is acting like nothing happened. I get angry and stab her in the chest. Then I behead her and throw her head from the window.