While evaluation of someone's behaviour to work out the truth is a valid endeavour, I find people have a tendency – and I notice it often in our community – to expect perfect rationality in humans at all times. I guess as it makes it easier to criticise them.
People who are stressed, sick, anxious, depressed etc often operate more on emotion and in aa reactive way rather than with foresight, clarity and rationality.
I mean, yes, but when we take irrationality into account, we can't discount the irrationality of saying "if it's suicide, it's not me" to a friend, and then committing suicide right after.
My point isn't about what he supposedly did made sense or not, but what he did was completely useless if true, and even debating it is useless now because of the way it was done. That's why I mentioned how he cursed his friend with that.
People who are stressed, sick, anxious, depressed etc often operate more on emotion and in aa reactive way rather than with foresight, clarity and rationality.