It’s one thing to assume you know what’s going on with a person, but it’s different when you get in their head.
The simple word for this is empathy.
When you reach that point, the way forward isn’t to merely re-state what the person is feeling… that’s the beginning… the connection point… and a critical step.
It shines a light on the blind spots in your own perceptions.
The next step is to begin to shine a light on their blind spots that will help them in a way they cannot see.
Following this route, you will see what’s really going on and both of you can be changed by the experience.