Death Was My Final Target

At our first anniversary celebration, my wife publicly announced that she was divorcing me to marry her true love. My past mission targets coldly watched me, thinking I would cause a ruckus and trouble Ivan Lowe like I always had. However, I merely walked over to a nearby lake and jumped into it. Unbeknownst to them, Serena Gale was my very last mission target. If I failed, I was supposed to go home. So, why did they only begin to regret their choices after I finally died?