2 out of 3 ain't bad

Its been just over 5 and a half years since my Mom passed away. I never knew that I would lose my father too.

No, he has not passed away, but he has moved on. He's moved on so much that he seems to have forgotten most of the life: family, friends, children, that he had while Mom was still alive.
Father's Day was a bit of a tough day, tougher than Mother's Day. You see, I have accepted that Mom is better off in heaven. Mind you there are still times that I grieve and miss her terribly, but I realize that she's still with me in spirit, and always in my heart.
Mom being gone because she's been taken home to heaven is a very good reason for someone to be gone. Dad being gone because he chooses to not be a part of my life is tougher. How do you grieve for someone who is still alive, and well (as far as I know...)
I couldn't call my Dad on Father's Day. I am not even 100% sure if I really wanted to, but even if I did, I had no way to call. He has moved to a new home, and has not provided me with his new contact information. I know I have done my diligence by ensuring he received my new address and phone number, but he has not returned the favor.
I try not to be bitter about the situation, but to me it feels as though I care a lot more than he does. Every now and again it takes its toll - on me. If he was a 'friend' or acquaintance I would have written him off already, but he's my Dad, and no matter what, I still love him. But I cannot continue to fret over the man, he has his life, and all I can do is hope that he is happy with it.
Besides... I have 2 other Dads (hubby's father and step-father) whom are reachable, and whom I have a better relationship with.
As they say... 2 out of 3 ain't bad!