My exboyfriend an I split up a couple of years ago but we are still good friends and are still very close. Anyway I've lent him a lot of money and he's been really good about paying me monthly. But there are months like there where no matter how many times I call him he still hasn't paid me the money I need to make the loan payment. What can I do? How can I get him to pay me back the money he owes me?