Somebody That I Used To Know (A Troyler Fanfiction)

For Tyler Oakley and Troye Sivan, it seems as though nothing could break ever break their relationship. They did everything together from cute little adventures to nights in on the couch watching a movie together. When one of their friends start falling for Troye, how will they react? Will Troye just ignore one of his closest friends feelings or will he betray Tyler and act on them?
*smut warning*