Men are jealous?

SML or ML is jealous.

asian drama lover listed some really good ones! 

Here are a few more dramas I can think of that have an especially strong jealous rivalry between ML and SML.

• Protect the Boss
• Decreed by Fate
• True Beauty
• Mr. Sunshine
• Summer's Desire
• Hwarang
• My ID Is Gangnam Beauty (later episodes)
• Fall in Love With My Bad Boy
• Wulin Heroes
• Binary Love
• Best Mistake

Other dramas with really jealous possessive MLs...

• Confess Your Love
• City of Streamer
• Falling For Innocence
• Nothing But You
• Derailment
• Fight for My Way
• Go Ahead (later episodes)
• My Lady General
• Sweet First Love
• The Greatest Love