I can only imagine how difficult this has been for you. While you are feeling sad and lonely, please try to think about doing what makes you feel good. Have coffee, shower, dress, pet the animals, visit your favourite place or moments, friends and family. Whatever it takes, do your best to do it. I know it's difficult because you feel actual pain in your heart and the world seems to be crumbling, but it's not.
Your children care very much for you and they are feeling your pain, let alone the anguish they are feeling about their mother. Let them help you, comfort you, grieve with you and cry with you. They need you as much as you need them. It sounds like your children are a pillar of strength and they probably know more than anybody what needs to be done. Open your arms to them, let them know that they are going to get their father back.
I want to mention this because you refer to being alone in old age? Well, my mother moved in with me in June and hated it. After 2 weeks she packed up her dog and walked to the nearest police station. She's 86 yrs old and memory starting to fade. We drove her home and let her figure things out. We had cared for her, cooked, cleaned and tried to keep her busy. We didn't pamper her as we wanted her to be as self-sufficient as she could.
Three months later, she had the neighbour call me to say she wanted to come back.
I picked her up, her stupid dog and all her worthy possessions. I LOVE MY MOTHER AND COULDN'T BE HAPPIER HAVING HER HERE WITH ME. It's been almost 2 months and it only feels like a week. We as a family are sooooo pleased that she is here, safe, fed, sheltered and with her stupid dog. I know she loves being here too.
Your children are your life and blood and will do whatever it takes to make you happy. Please be receptive and give to them what you are made of. Don't let one person drag you down when you have so many to lift! You are much loved on this forum, let alone by your friends, neighbours, and especially your family.
It's very difficult to see the light but please, please try. Each minute gets better and then each hour and so on. A shower, dressing, making meals, checking on this forum, all of this takes time and will keep you busy. I hope you don't think I don't have any respect for your wife by saying 'don't let one person drag you down'.
It's just that there are so many more counting on you to get up, stand up and fight for your life. It's your children's right to expect that from you. Put a smile on their face, ease their pain and let them get you thru this. Everyone here is counting on you too!
P.S. Christmas Tree? Your choice but it really wouldn't hurt that much even if it's one of those pre-lit, and fully decorated???