When someone keeps changing the subject, that’s the subject.

Avoidance is loud if you are watching for it. The topic someone steers away from three times is usually the one that costs them something, whether that is embarrassment, fear or a thing they have not admitted yet. The swerve carries more information than any answer they give. Pushing harder rarely works, because the swerve is the defense.

Notice the pattern rather than chasing it in the moment. If it matters, come back to it later, quietly and once, and give them room to answer or not.