Hanazono No Kioku

From Hoshi Kuzuu:
Chris, a beautiful young man whom he met at a bar and Yuu, who had a drunken marriage with him. And the matching tattoo on his ring finger was also meant as a joke… “We’re married, so we’ve gotta stay together.” Persistent and possessive, he uncovers everything about Yuu’s past. They happily drown in that drunken passion, but…!? A troubled tale of love that will move you to tears…has been drawn!
• Kuroneko to Futari Kurashi (Black Cat and the Domestic Life)