My Wife’s Having an Affair this Week (2016)

Is also a "slice-of-life" like drama that even if i"it doesn't involve social media, it also focuses on married couples, affairs and divorce

Hyun Woo fell in love with Soo Yeon at first sight in college and they have been married for 8 years. He thought he had the perfect family, with Soo Yeon, who is a beautiful wife and a good mother to his beloved son. Then one day, Hyun Woo sees a hotel reservation message sent by a male stranger on Soo Yeon’s phone. Even though he tries not to think about it, proof after proof is revealed, which confirm that his wife is indeed having an affair. Since he firmly believes that he is a good husband and father, he can’t seem to forgive his wife. He blames her for putting the family in danger but then starts thinking, “Have I been a good husband to my wife?”

Both Dramas deals about Marriage and Relationships, Divorce, Close Friendship, Second Lead couples and delivers relationship hardships and comedic slice of life story.

They both explore the topic on infidelity deeply and has Lee Sun Gyun's as the main lead, not to mention his voice (eargasm). Both can make you feel a lot of emotions, but My Wife's is more comedic. It has similar vibes on the melodrama side.

It's not around a crime or a murder but...
This drama explores multiple aspects of marriage, to cheating, to divorce,
I don't really know how to describe that drama it was beautiful

but here's the summary : "Hyun Woo fell in love with Soo Yeon at first sight in college and they have been married for 8 years. He thought he had the perfect family, with Soo Yeon, who is a beautiful wife and a good mother to his beloved son. Then one day, Hyun Woo sees a hotel reservation message sent by a male stranger on Soo Yeon’s phone. Even though he tries not to think about it, proof after proof is revealed, which confirm that his wife is indeed having an affair. Since he firmly believes that he is a good husband and father, he can’t seem to forgive his wife. He blames her for putting the family in danger but then starts thinking, “Have I been a good husband to my wife?” "