QUESTION

What is the meaning of 맞파알해요 and 맞팔하고 소통하고 지내요

파알 or 팔 is a short form of 팔로우(follow).

맞팔 means "follow each other or follow me back"

맞파알해요

Let's follow each other

맞팔하고 소통하고 지내요

Follow me back and comunicate with me.