<human>: I paid someone a check in January, setting in motion a 90-day period during which they could cash the check anytime (and I thought they had) and they finally decided to cash it a couple weeks ago, right around the time that my funds were drying up. Unfortunately, it was a very pertinent, time-dependent payment and I'm worried that the whole process was screwed up just because I had thought they'd already paid it, and failed to have the proper amount of money ready for it. If my account reads a negative number, does that mean that they walked away with the cash, and that I just need to pay the bank back as soon as I can? By the time I have the money to bring the account back above zero, it will be outside that 90-day period.

Summarize the given text in a few sentences.
<bot>: I paid a check in January and they didn't cash until right about the time I had zero dollars, now my account reads negative, did that check bounce?