to end a relationship or partnership
関係やパートナーシップを終わらせる (kankei ya paatonaashippu o owaraseru)
"After ten years together, they decided to go separate ways."
"10年一緒に過ごした後、彼らは別々の道を行くことに決めました。" (Juu-nen issho ni sugoshita ato, karera wa **betsubetsu no michi o iku koto ni kimemashita**.)
when everything is considered; ultimately
an outstanding work of art or achievement
to watch for something or someone carefully
to express an opinion openly and boldly
to turn around and go back the way you came
to start something; to begin working or functioning