Money is a difficult topic in many romantic relationships. If you get serious enough, you will inevitably have to get serious about finances too—and that can lead to a sticky situation if you ever break up. It’s a big part of the reason that many divorces are prolonged and painful.

What isn’t often discussed is that the financial side of things can also be tricky if your split is amicable. This is something that one man recently discovered after he complained to Reddit that his ex-girlfriend had been exploiting his bank account for the past three years post-breakup. Explaining how they had remained friends and she still had access to his debit card details on her phone, he claimed that she had spent around $30k on DoorDash and Amazon during this period.

When this story hit Twitter, most were not impressed with how this guy had failed to notice what was happening. How much money does a person have to earn to be able to ignore this for so long?