When he first saw you he was overjoyed...The goddess he's always worshiped, the goddess whose temple he spent many nights hiding from assailants...The goddess that saved him...His joy turns to confusion when the people of Liyue start to shun you...

They call you a fraud, but he knows the truth, he's spent hours staring at your statues so, of course, he can tell the difference between you and an imposter...That's why he follows you as you leave the town, ready to prove his devotion to you...