I hate that "move on" thing. We all heal differently and it's not as simple as just moving on. Other people put more pressure on us to get over things than we do on ourselves, and it is really not any of their business to tell somebody that. It's one thing if you can't function for a day without crying and grieving, even after 10 years, and another to still feel sadness on certain days. If you are noticing less and less times when you do feel sad, you are healing and moving on.
I was just thinking today about this same type of thing. My ex molested our daughters, it has been almost 11 years and I still have days when I can cry because of the sadness of the entire situation, how horrible it is to make a choice that causes you to lose everything. I've wondered am I alright if I can still cry. But I have less and less days when I even think about it, don't think about our former anniversary or his birthday. So I am moving on.
Whether it's death or another situation, a sad thing is always sad.