A long time friend recently moved into my house following a break up of their relationship. I don't have too many issues with sharing my house, the second bedroom was just sitting round doing nothing and it means I'm not perfecting the art of talking to myself after work.
That said, my friend has a habit that is starting to annoy me: They often take stuff from the fridge and then leave it out, meaning it needs to be thrown if I don't discover it until I get home from work on nights as I have no way of knowing how long it's been sitting in a warm room (for all I know, my friend got it out of the fridge the previous morning while I was sleeping off the last night shift). I've not wanted to say anything as I didn't want to make my friend feel like I was nit picking. However, it's bugging me because I usually only do a couple of food shops each month and each shop should last at least a couple of weeks. Now I'm having to do extra shops because my friend has left food that needs to be kept refrigerated on top of the tumble dryer while it's in use or decided they're ordering take away so otherwise good food I ordered at their request goes out of date.
Would I be unreasonable to put some rules in place like "If you take it out of the fridge, please put it back" and "can we try not to order take away when there's plenty of food in". I want my friend to feel at home, but it sometimes feels like they're doing this because it's my money paying for the food.