How you feel
Anxiety
Anxiety is a strong, uncomfortable feeling of fear. It is a normal emotional response to danger.
All the uncertainty that comes with change can make you feel anxious. So you may feel anxious when your parents split up, because there may be so many unknowns—like what is going to happen, where you are going to live, how you will cope with all the changes, and so on.
You might also feel like you have to take sides, or choose between one parent and the other, which could make you feel anxious.