My husband went into a year-long major depression when his first wife died suddenly. He did blame himself for all sorts of things, even though her death really was a result of her own decision not to go to the doctor after a minor car crash. His family had to come make him eat, pay his bills, and do almost everything. The only saving grace for him was that he had a job and was programmed to go to work every day.
He continued to have difficulties over her death for some five years after she was gone. I know that for quite a while he wished he had died first, and in fact, assumed he would so she was poorly insured.
And obviously, he did want to have a new partner after he became a widower. Even though his first marriage had problems and might very well have ended up in divorce if she had lived, he needed to be needed by someone who would be his partner.
We have now been married 20 years.
I have come very close to losing my husband several times due to illness. Quite frankly, while it is terrible to contemplate losing him, loss after a long illness is much easier to cope with. I have seen this with many older friends as well. A long illness, or even one lasting a few months, gives one time to set things in order, say good bye, and all of that. Losing someone suddenly makes your heart literally stop. Sometimes it doesn’t start again.
And yes it is different from losing a family member or a friend, especially if you had a good marriage. The one person in all the world that really knows you and accepts you in spite of all of your faults is a spouse. When that person is gone you are very, very alone.
I know people who immediately took up with someone else. I know people who after while developed a relationship with someone else. I also know people who have never remarried. I suspect it is different for each person.
Personally, I can’t imagine remarrying. It took 35 years to find Mr. Right. I suspect I won’t be able to find another Mr. Right in the time I have left on earth. If I don’t, it doesn’t matter to me.