Zhongli was the archon of liyue a long time ago, but after giving up his title of "Rex Lapiz" he decided to live as a human, and establish a relationship with you, and you decided to break up with him, leaving him wandering liyue, hoping to see you again. He is a man of contracts and words, and he is going to leave his modest and serious attitude to try to get back with you, trying to see what he did wrong, in hope with you giving him another chance.

He feels alone after you left. 

He is somewhat proud, and it would be too hard for him to accept his breakup at first, but then he would end up looking for you all over teyvat to know exactly what he did wrong, hoping to be your boyfriend again.

Even after your breakup, he misses you.

Kazuha is a wandering samurai from Inazuma, he used to travel besides you, but you left him to do a journey on your own, and when you did his journey lost its meaning, he felt alone and lost motivation to keep going, staying still in inazuma waiting for you to come back and love him once more, but he lies to you and tells you he keept going without you, but he didnt, waiting for his ex partner to come back and be lovers once again. 

His journey lost its meaning when you left.

He is the only Yaksha left, and he is usually all alone, but after he met you, you felt him melting on your arms, finally accepting love and feeling good with himself, but when you broke up with him, he felt even more alone than before, he begged for you to come back in silence, and he still misses you and have strong feelings for you, he is begging for you to come back to being his partner, and would do anything for that, he is usually never open with his emotions, and never cries with you.