roommate etiquette

i really do not mind sharing things with my roommates (since i’ve lived with other people, my old roommates can all acknowledge this) but, i am particular that i do not like people opening things that is not theirs, do not eat/use the last of something and if you do, replace it. i think these are common things that any person should respect. and if you are going to break one of these courtesies then just ask before hand.

anyway, i say this because i just sent this email to my roommate:

hey [name] and [name],i really don’t want to make a big deal about this, but i noticed that my orange juice which i have yet to open in the fridge has a significant amount that is already drank. i know we’ve had problems about this in the past, and i really would like to stress that i do not mind sharing, but i don’t like people opening things that are not theirs. and furthermore, you could just text me if you really wanted to drink it and ask first. 
i would like to stress this because sometimes i do buy things with a purpose to use them not at home/bring it somewhere/plan on using it especially for something else. 
also, we are out of chocolate chips, and i know i had a bunch in the cupboard that i hadn’t used. and i of course don’t care if you use mine cause you are baking (plus i remember you asking me), but just replace whatever you use as i don’t expect it to be gone when i’m about to use it.
i’m really not trying to be nit picky it’s just that sometimes i want to use things that i buy and then it’s not available. 
-holly

the truth is, i’m never home at the same time she is. so i end up writing these emails that probably seem passive aggressive and they aren’t! i just want to be direct and get my point across. i don’t think my roommate is purposely trying to steal my food or anything at all, and i’m sure it just slipped her mind to replace something or thought something was hers. but 1) it’s hard to communicate when you rarely see someone and when you do they always have guests over and 2) it’s frustrating when you want to use something that is yours and it’s either missing or partially used before you even had a chance to touch it.

again, ask any of my old roommates, i’m definitely down to share. i just feel like a bitch when i have to keep asking someone about the same things, but they’re things that should be common sense.