I think you did the right thing in spending time w/your father. I'm sure he appreciated the time you spent w/him. After all, we don't know how much time any of us has left on this earth and it's important to visit w/those family members and friends who are sick.
Your lady friend sound like a really nice lady. You'll get together again very soon.
I'm also glad to read that you spent Christmas Eve w/3 of your sons. You are slowly coming back to life and starting to enjoy life again. Enjoy the time you spend w/family and friends.
A zoo membership? Wow! You are certainly going to enjoy going there and taking photos. I've enjoyed the Eagle cam photos that you've been posting.
The new year is around the corner and w/the new year comes new beginnings. Continue moving forward.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.