I think it's a good idea to send him a card and even something (gift) you know he would appreciate.
You have been away from him and not giving him any trouble, he can't hold any grudge against you. You have been (and are) his W for many years and even though things are rocky now, you can still talk to him or send a card or text him.
Who knows if he is also thinking what you up to during the holidays. Try to keep it gentle and nice, something that means you, but does not get into the romance part.
I think that even with all what is going on, there is probably a chance to keep it friendly. Maybe he will think about talking to you about what is going on.
I know it is hard not to think about OW and how wonderful it may be when H is with her and all the stuff that can make you depressed. But he fell in love with you before, so he still have some feeling for you, and maybe he can fall in love with you again.
You know, I said I need to stick a needle on my H because he was to quite and distant and it worked. He saw me on Friday and I think he got very curious why I was so happy and had a big smile.
Well, he is finding out I am not dead, and I am giving myself a chance to be happy again with him or without him.
Hope that helps, I will be cheering for you whatever direction you go. I want you to feel happy and be happy.
