It seems like there was a hidden bromance in 'Reply 1994'! Perhaps Haitai was cheating on Samcheonpo? Haitai's actor Son Ho Joon revealed his affectionate message exchanges with 'Reply 1994' co-star Yoo Yun Suk.

SEE ALSO: Attorneys from Korea's top law firms weigh in on NewJeans-ADOR situation

He uploaded the picture of their chat onto Twitter on March 7 along with, "A conversation with my girlfriend. She says she misses me. So playing hard to get does work."

In the picture, Yoo Yun Suk wrote, "When you're done tomorrow, come over kekeke," to which Son Ho Joon wrote a series of responses: "Am I going to be there until late??? Do you miss me???? Quickly say you miss me!!! Quickly tell me that you miss me!!!!!!"

Yoo Yun Suk sent back an emoticon of himself forming a heart shape with his arms and gave in, saying, "I miss you." Satisfied, Son Ho Joon responded, "Okay, I'll run to you tomorrow~ <3," while Yoo Yun Suk concluded, "See you tomorrow~~ keke."  

Seems like they've set their date plans!