Not being honest with a housemate is selfish and wrong.
Alexandria put the meat away in the fruit drawer, when shortly after her roommates asked her if she was the one who put it there.
Alexandria wants to maintain a good relationship with her roommates.
Alexandria tells them she did put them in the wrong place, and offers to come put them away correctly.
Alexandria wanting to avoid her roommates thinking less of her, tells them she put the meat away in the right place.
Alexandria's roommates understood that everyone makes mistakes and ends up respecting her more for owning up to her mistake.
Alexandria's roommates call her a liar and start to trust her less.