No idea how ‘serious’ these two were or if that even matters, but this girl (and the guy in bed with her) could literally not care less about the fact her boyfriend just caught her cheating on him and is filming the evidence for the world to see. So apathetic you almost have to respect it:

https://www.youtube.com/watch?v=_0XR4rapJik

At least it didn’t end in a double murder I suppose. Also nowhere near as brutal a video as when these two guys figured out their mutual girlfriend was cheating on them both.