Years ago, after my first divorce, I went to a group meeting not intended for healing, per se, and met a widow. When I mentioned my recent divorce, she told me that she had lost her husband, but she felt sorry for those of us who were victims of divorce. She said she knew that her husband loved her and did not reject her right up to the end, while those of us who experienced divorce not only had the grieving for the loss to contend with but also the utter and total rejection by the one who proclaimed undying love at one time.
If you experienced the love from your husband right up to the end, then you have that foundation to work with as you grieve.
Just remember, the first rule of grieving is that only you and your emotions can determine its length and depth. Nobody else can determine for you how long and how deep you must grieve for your loss.
Another woman I met only on line, with whom I discussed such losses, sent me a book called, "How to Survive the Loss of a Love." Along with other things, the book described how we will have good days and bad days. Recovering is not a straight line but more like a roller coaster. Eventually, though, one day's lows will still be higher than a previous day's highs.
I wish you solace in your path.
Stay well.
-Lynn