There are subtle ways to get back at your cheating ex who owes you money, and then there's this . This Redditor took things up several notches by filming a five-minute video in which she and her friends told off her ex-boyfriend who had recently reached back out after breaking things off three years ago. For some context, the two had been living together for several years and he owed her $600 when he decided to leave her for someone else. It turns out that the other relationship ended up not wo…