Sometimes you see death coming and sometimes it's a complete surprise, like those kids at the Florida high school yesterday. My dad died from a heart attack just a few days prior to his 47th birthday, if he knew he had any heart issues he never told us about it. So you never know when, but you do know that it is unavoidable. My advice: don't let relationships wither and die, at least make the effort from your end to mend things. Anger, hate, fear, revenge, envy, jealousy, etc., these things do not enrich your life; do not waste your time and energy on them. Instead, focus on what you can do even in a small way to help somebody else or put a smile of their face, and in so doing enrich your own life. Trust me, it works.