triangle with happy ending

Suggest me drama where its triangle at first but 2nd lead male/female loses interest in mc. Eventually gets his/her partner.  I just want something where everyone is couple and happy :) 

Thanks.

• Suspicious Partner
• Healer (the love triangle is very, very subtle though)
• I'm Not A Robot
• Protect the Boss

The master's sun

The greatest love

Strongest Deluveryman