Did a rat do this?? !!

A few weeks ago I saw a huge rat ion my kitchen counter. My neighbor patched up the hole behind my washing machine that I saw it run behind.
I thought the problem was solved but now I am wondering.
I opened my dresser drawer in my bedroom a few minutes ago and found this. It was a tube of glucose tablets. The ONLY place I keep them is in my purse or on my nightstand. It was NOT there yesterday! It’s empty and chewed up! Could this be a rat?
I have heard noises awhile back in my bathroom that’s in my bedroom, and one time months ago I was almost asleep and one of my dresser drawers slid open by itself! I assumed it was a poltergeist and went back to sleep.
Now I’m thinking that rat is stuck in my house somehow since my neighbor patched the holes in my kitchen wall.
My roommate has a cat and she keeps trying to go in my bedroom and I just shoo her out.
That’s it- my next day off I’m going to the animal shelter and getting a cat to keep in my bedroom!