Hold your hearts, 'Protect the Boss' fans -- it looks like a fight over a lady will be going down on the twelfth episode of the popular SBS drama on today's episode.

As the September 8 broadcast revealed,�Cha Moo Won (played by Jaejoong) picked a fight with Cha Ji Heon (played by Jisung), who had taken No Eun Seoul (played by Choi Kang Hee) from him. Even though Moo Won had spent time with Eun Seol as a friend, he could not easily suppress his romantic feelings. Thus, Moo Won told Ji Heon in the bathroom, "I don't think it'll work. I don't think I can send her that easily." Humiliated by Moo Won's provocations Ji Heon then asked, "What do you mean?" in which Moo Won responded with, "I already told you beforehand, so it's not foul play." Ji Heon stopped Moo Won by grabbing his shoulder, only to meet Moo Won's head butt. While tensions arose between the two, the fight ended hilariously; check out what happened below! Source: Seoul Newspaper NTN via Nate