Am I asking for too much?

My parents rent out rooms in their house to three other people and I stay there rent and bill free. I have a compromised immune system and the rate of COVID-19 cases have spiked. With that being said, I set a rule in the house that each person has to have their own separate shelf in the refrigerator, because I can’t afford to get sick.

One of my roommates (that I’ve been having issues with) put her frozen dinner on the same shelf where I put my things. To make matters worse, she touched my veggie bacon— which she denies doing. I asked my other roommates if they touched my veggie bacon and they said no and they don’t lie, so obviously she did it.

Am I being ridiculous?
Am I asking for too much?
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