My dad died of dementia last week at age 81. I am taking the grieving process day-by-day. His dementia was advanced so I have spent the last 2 years watching him deteriorate steadily and was somewhat ready for his passing. He and my mom were married for 55 years. I won't bore you with the details but let's just say their marriage had deteriorated and they spent the last decade (possibly more) not being very nice to each other (mom being far more cruel). I just spent my Thanksgiving morning at my mom's house....she rattled off decades of regret with respect to her behavior toward him. She is beside herself with guilt. It's horrible. I am one to try to learn from bad events: Hug your loved ones and always treat them in a way that you will be proud in the future. At some point you get no do-overs.