Here's a creative way to figure out if someone's cheating on you.
A woman named Andrea Lopez is going viral on TikTok for a trick she came up with to catch a cheater.
Video below. Warning: There's an F-bomb.
In the video, she runs a lint roller on the carpet in her boyfriend's room, and it picks up a bunch of long red hairs. Andrea's hair is black.
Lots of people have commented on the video about how impressed they are with this, quote, "FBI level trick" . . . although one cheater took it a different way. Quote, "Clean the floor when you have a girl over. Got it."