These dramas will make you feel something that hurts so bad but also feels so good. You know what I mean, right?

• "Strong Woman Do Bong Soon"- the love triangle between Do Bong Soon, Ahn Min Hyuk, In Gook Doo

"Strong Woman Do Bong Soon" features lead star Park Bo Young portraying the character of a person who was born with a super strength ability and who desires to be a game maker. She meets Ahn Min Hyuk, played by Park Hyung Sik, who is the game company CEO. Ahn Min Hyuk needs a strong bodyguard and he then hires Do Bong Soon, with an additional bonus of letting her develop a game she wants.

Eventually, Min Hyuk discovers that he is in love with the lady. Unfortunately, she has her eyes set on In Gook Doo, her first love. In Gook Doo is portrayed by Ji Soo, who plays a cop and only considers Bong Soon as his friend. Spoiler alert, he discovered in the end that she is something more than his pal but it was already too late.

• "She Was Pretty" the love triangle between Kim Hye Jin, Ji Sung Joon, Kim Shin Hyuk

"She Was Pretty" stars actress Hwang Jung Eum, portraying the role of Kim Hye Jin. She is a woman who was physically organized and popular with the boys as a teenager but eventually grew up caring a little less about her appearance. Then, she was hired at a magazine company where her first love, Ji Sung Joon, played by Park Seo Joon, is the dashing boss who just got back from abroad. Sung Joon was deeply in love with Hye Jin when they were young but could not be able to recognize her as an adult.

While Sung Joon is unable to discover who really Hye Jin is, Kim Shin Hyuk, played by Super Junior's Choi Si Won, walks into the picture and tries his best to steal her heart. He loves her for who she is and doesn't seem to care about her physical appearance, and this is where the second-lead syndrome kicks in. Hard.

• "Heirs" the love triangle between Cha Eun Sang, Kim Tan, Choi Young Do

Okay, so if you really want to talk about a K-drama love triangle that went down as definitely being one to remember, it's the love triangle between Cha Eun Sang (Park Shin Hye), Kim Tan (Lee Min Ho), and Choi Young Do (Kim Woo Bin).

In this drama, Cha Eun Sang is a poor girl who was given a chance to attend an elite private school alongside Young Do and Kim Tan. These three characters are into an intense love triangle.

The main reason why this love triangle hurts but also feels good is because of Choi Young Do. We can't really differentiate why, but maybe because of the uncertainty he has deep in his heart and also his angsty persona that made people fall in love with this bad boy. Everyone sees him as a tough man, but when it comes to Cha Eun Sang, he becomes smoother than a marshmallow. And the fact that his rival was his ex-best friend also made this series a bittersweet love triangle.