Interesting you should say that about the tumour - a number of people who knew him well also wondered that [not a put down, I hope you realise, but to say , yes, it seeemed like a real possibility]. But when he did get cancer he had a whole body scan to check for any secondaries, and that would have picked up a brain tumour.
his behaviour has seemed very like someone with something seriously wrong with him.
I sometimes feel like the only person on this board whose husband was actually committed and loving - not sure it makes it easier though! or maybe I was deluding myself, and am taking longer to realise it!
I agree with you about suicides. It is heartbreaking though for those left behind.