Apple and Honey: His Rose Colored Life (2012)

Blurb
Natsuki Matsuda, twenty-years-old, has proudly identified as gay since age fifteen.
Then Komano, nineteen-years-old, comes into his life. He’s always been popular with the ladies, but he’s a free-spirit who cannot be tamed – by man or woman! This is the story of their love. Can Natsuki handle Komano’s bohemian nature in the long haul or will jealousy and possessiveness get the best of him?

Source: www.anisearch.com/manga/9895