This year due to covid concerns and the fact that her partner is high risk, a coworker asked to be moved from her crowded office into my workspace (I am high risk). I agreed because I assumed we would share a similar level of caution. I found out that she is traveling to Cancun over our winter recess. Although she should be able to isolate and test before she comes back into the office, I am having a hard time feeling confident in her judgment. Is it worth bringing it up with her before I bring it to my supervisor about moving her out of my workspace?