It looks like�Lee Kwang Soo is feeling betrayed by his bromance partner�Song Joong Ki.�

Following the Song Song couple's marriage news, Lee Kwang Soo expressed frustration via Instagram.

SEE ALSO: Lee Kwang Soo returns to SBS entertainment program for the first time in two years

The model-actor shared a photo of the bromantic note Song Joong Ki left at the sets of 'Descendants of the Sun' and asked, "So then what was all this?"

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A post shared by ??? (@masijacoke850714) on Jul 5, 2017 at 8:54am PDT

Sorry, Kwang Soo. Song Joong Ki's real romance was with Song Hye Kyo after all.�