Dear that’s life!

A good friend asked me to lend her some money a while ago after a messy break-up and I was pleased to help out as she moved into a new place. She was very grateful at the time but it’s been a few months and there’s no sign of her even starting to repay me. I brought it up a couple of weeks ago and she seemed offended that I mentioned it. I really don’t want to damage the friendship, and it’s not a fortune, but I would like the money back. Can you help me come up with a plan to sort this out? What do I do?