Whenever I see an older couple still in a happy marriage, it makes me smile. It's my proof that true love can and does last for a lifetime! :-)
My grandparents loved each other very much. When my grandfather died of cancer, three years ago, my grandmother was lost without him. She then got sick with cancer too. She died, last year.
Maybe it's the romantic in me, but I think that maybe she got sick and died to be with him again. Before he had died, she seemed very healthy... but after he died, she gained cancer too and her health slipped away. She wasn't as sad when my grandfather died, as if she knew she would see him again! Her sadness was as if he was leaving her for a few years only, but was coming back. I thought she was in denial... but she knew, somehow. :-)
I do believe she is on the other side with him. I use to get visits from my grandfather in my dreams, but now it's both of them together. I know that sounds strange, but it's true. Their spirits are very much alive and they're still in love! :-)