n, I'm so glad you went to your class reunion! They are a lot of fun and yes, people do change over the years. I'm very sorry to hear about the one classmate and will keep him in my prayers. It will be nice if some of them do come to visit and lunch would be fun too. It gives you something to think about in the days to come.
As for your anniversary, I'm sorry he didn't acknowledge it. Many of them don't because it's a reminder of what they've left behind and yes, they know the pain you are experiencing by their silence. Just a little tidbit....it took my xh exactly 9 years to finally wish me a happy birthday this year. They do not forget you or what their lives were like when they were w/you. For example, three years ago, I met the xh for a late lunch...he remembered that I always went Christmas shopping on Black Friday and didn't want to interfere w/my plans. Little did he know that I don't shop on Black Friday now. Little things that we think they forget.....they don't. I hope my sharing of these tidbits will help ease a little bit of your pain.
n, make some plans for the holidays, starting w/Halloween and go from there. Leave the door ajar and do for you at this time. Make plans w/your family and friends so that you don't feel so alone on those special days and I promise you, you will get through them and you will be okay.
Please take care of yourself.
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.