How to get past the sorrow of your one true love?

Last month my ex fiancee died, We last spoke two weeks before his death as we had remained on good terms. He was one of those people, that fall into the favorite people category forever no matter what. We split up May 09 after 12 years together because of his illness, he wanted to suffer alone and not burden me with the consequences of his treatment. This past spring we spent some time together but I was not ready to come home.

I find out at the funeral from his family that he had refused a life saving transplant because he didn't want to "burden" anyone with his care. iI am devastated by his reasoning because surely he should have known after all our years together I would have done anything to help.

I suppose what I am asking is how do I go about alleviating my guilt?