Hi, around 2012-2015ish I read a yaoi set in high school in which people are born with/develop unique birth marks that match them with their soul mate. The main character was unique and didn't have a mark while the guy he was in love with did in the shape of a multi coloured flower. There was a lot of angst about him being the most desirable guy but having to hide that he was destined to be alone while pining for his friend.

I loved it so much that I took a bunch of screenshots at the time but when I went to check it on my hard drive the files were lost and the site that I saved my reading progress on at the time had reset and lost 98% of my reading history. 😭😱

Im dying to know the series but all my google search term combos, database tag searches and scrolling through manga sites have gotten me nowhere. Does anyone else remember this?