I (22M) just moved into an apartment with two of my friends (also 22M), including my best friend who I will call Mark. Him and I get along reasonably well and are very close and generally wouldn't have any reason to be upset with each other; our friendship has gone through a lot of rough patches but we've generally come back stronger. However he has a very specific Thing about the apartment, since my other friend and I moved into a place he'd already been living in for a year. The previous two roommates (who are also friends) were (according to Mark) pleasant but generally untidy, and the state of the kitchen especially had been a point of contention. Mark was determined not to let the same thing happen with his new roommates, and made a point of being very thorough in letting us (especially me who was used to living a good bit messier) know whenever we didn't leave something good enough. In general he's very valid (I know he was frustrated with the previous roommates and cleanliness is important) but especially the first month was rough since I definitely was messy a few times and he got specifically irritated with me at a couple points. After a few weeks though I resolved to do better for him, and got myself to the point where my dishes would barely touch the sink. When he came home from a trip a couple weeks ago, I made it a point to clean out the sink, and I also tried to do so again when he got back from another work trip last night (despite the fact I hadn't been cooking and almost none of the mess in the kitchen was mine). I don't say this to hold it over anyone's head but I was genuinely putting in effort and trying to do nice things even when I didn't need to. (1/2)