It was reported that Ninomiya Kazunari (Arashi) and Nagasawa Masami have been in a good relationship, however, "Syu-kan Josei"(July 6th issue) reported that they have broken up.

According to the gossip magazine, Ninomiya used to visit Masami's place very often, but he stopped going over since March. �A neighbor of Masami's also testified that she stopped seeing Ninomiya since March.

March is when Masami made an appearance on "Waratte iitomo!" as a guest, and the audience was worried about how skinny Masami was.

"Syu-kan Josei" also reported the reason why they broke up is that Ninomiya cheated on Masami.

Source: Men's cyzo + Syu-kan Josei