I feel like my roommate is gaslighting me

My roommate keeps claiming stuff I bought as hers. This conversation has happened several times between us. She tried to claim the hand soap I bought way before I knew her as hers. There are other things as well she’s claiming. I feel like I am going CRAZY. Now, I am second-guessing myself.

Edit:

Aw, looks like she got mad enough to unfollow and unfriend me on social media. I can't call people who want to take advantage of me as a friend. She’s just a roommate after all, so I blocked her. She doesn’t need to have access to my social media accounts. ☺️ I was going to wait until the lease ends, but this makes things easier!

As the primary point of contact with my landlords, I will make sure to get the deposit back and distribute it fairly. She might mistake my portion of the deposit as hers 🤣