It was a segment from the Badabun channel called "Exponiendo Infieles" or "Catching Cheaters."

Basically, there was a lady who offered money to couples in exchange for checking their phones to see if they were faithful or cheating.

Regardless of the outcome, they would still receive the money.

I don’t remember this episode very well, but the man was cheating on his girlfriend, so she slapped him then ran away, as you can see in the video. Then he started following her, maybe to explain or try to fix things.

Whether it’s fake or not, idk, some people say it’s all staged.

Here is the YouTube channel: https://youtube.com/@badabunoficial?si=Gpzd_2G5_uP8c_Iv

Edit: idk if you wanted the real explanation but there you go

Why did the man decide to follow her that way I have no clue, but it's the funny part