So hard to pick from..
When i was about age 12 / 13 and realization that my father was an alcoholic, my mom was too busy with trying to keep the household finances together that I was left alone to fend for myself.
Age 37 when my ex girlfriend OD and died in the parking of the mall.. She had a 5 year old son..
Age 44 when my Mom died of a superbug bug caught in the hospital she should never have attended..
Age 46 looking at my son and realizing what my mom missed out on in her grandson..
Fortunately life goes on and we cannot go back in time. It doesn't make these memories less painful but one must realize the past cannot be brought back.. So when you ask me why I spend so much time with my kids,, now you know..