Being in chronic pain and living with someone in chronic pain

Until two years ago I straddled both sides of the fence. I don't know which side is worse. My late husband and I both had chronic pain. I still do. He had a work related back injury and then five years later I got injuried falling down the stairs. It's tough watching someone you care about hurting all of the time. Of coarse I didn't realize how bad he had it until I was also living with it myself. Our relationship totally fell apart. It probably would have anyway without the pain. We'll never know for sure. Three days before our divorce would have been final he commited suicide. I'll never know exactly why he did it. Was it the pain? Was it the divorce? Or was it something entirely different? I hope it's not very common to have both partners in a marriage suffering from chronic pain. One is more than enough. It's hard to be there for your partner when you hurt as bad as they do. I think I will probably stay single.