I dreamed of playing with someone I like. Help me understand this dream.

Nu Wa made people out of mud ~ You play with that boy in mud, which can be understood as that you want to "make people" with him. Explain that you have a desire to be with him, and the subconscious encourages you to chase him and then "make a baby."

As for your quarrel with a girl, when he watches it, it can be understood that you are afraid that your bad side will be seen by him (because you are usually worried about ruining your image in his mind, it is reflected in your dream, and subconsciously remind you to be a lady).