Boku wa Kimi dake no Mono

Ryouhei and Yuuma finally got together and it's been half a year since they've started dating. Yuuma has made a new friend, and seems to have gotten close with him. Ryouhei has become jealous of this. He can't help but think that Yuuma, who tries his best to convey his unwavering feelings with his whole body, is cute. Ryouhei, who should have been a playboy, finally comes to the realization that he can't let go of Yuuma anymore.

(Source: BL Tsundoku Scans)