Hi, mleong6.
Welcome to the Apple Support Communities. We’re glad you decided to reach out about sharing your iCloud notes. If we understand correctly, you shared a note with your friend, and you’re not able to see any of the changes she makes but she can see the changes that you make. If we’re on the same page, let’s start by making sure that both of you are updated to the latest versions of each device.
How to update the software on your Mac - Apple Support
Update your iPhone, iPad, or iPod touch - Apple Support
Do you have any other Apple devices where you use the same iCloud account? If you do, are you able to see her updates on those devices? Knowing this will let us know if the issue is with your Mac updating iCloud changes.
We also suggest ensuring you have the note set up to share the most efficiently:
Share your notes on your iPhone, iPad, iPod touch, or Mac - Apple Support
All our best.