Recently two of my friends moved across country to where I live, under the pre tense that I would let them stay with me and my roommate for awhile until they got on their feet. However when they finally arrived my then current roommate (roommate a) sprang on all of us out of nowhere that he was leaving the lease and that it would be “ok” because the two friends would just cover his part of the lease. Ultimately the two have stayed we’ll call them roommate b and his girlfriend roommate c. When they arrived they were rather smelly, they came from a less privileged area so it didn’t bother me I assumed once they’d had time to clean their clothes etc it wouldn’t be an issue. However as time went on their hygiene wasn’t up to standard, roommate c the male often skips showers and has an unpleasant odor around him, which tends to spread to the couch and throw pillows. When they first arrived they were both rather active in maintaining the apartment and would help clean regularly, however now after about a month that has grinded to a halt, and they do almost no cleaning whatsoever now. I have asked on rare occasions for them to clean their dirty dishes out I.e. dirty cooking pot with dried beans etc, so that I can cook dinner for everyone (I’m also the cook) and though they begrudgingly do so, I end up having to go re wash them myself because they aren’t clean. I also ask for what I feel are simple things, small pet peeves of mine, like keeping the toilet seat and cover down, which still seems like an impossible task for them. They will also leave food all over the kitchen so that it dries up or gets stale, and I’m forced to watch over it as if they were children. My girlfriend also lives with us, and she by nature avoids and hates conflict, even assertive non aggressive conflict that I give. So she gets upset with me that I ask our roommates to help take care of things. The roommates also seem to use her as medium to vent their frustrations towards me, and tell her how it frustrates them when I ask them to do these things. 
My roommates do however contribute groceries though mostly the food is for themselves some of it I use to make dinner for the house.
My roommates will also be having their furniture from their home delivered soon, I know that their old home was infested with cockroaches and the sort, so I told my girlfriend that when it gets here I would want to personally inspect everything before it comes into the apartment and at minimum spray the furniture with febreze to minimize the invasive smells that would permeate my living space. She got upset with this proposal and said it would incredibly rude. So reddit, would I be the asshole?