My uncle CTB. I wish I had the courage to do what he did. He went out to some cabin that they owned, and shotgunned. If I had the strength, I'd do the same. Make sure that I was nowhere where anyone I know could find me, in some secluded place and just go, by whatever method. I wish I had the strength to do it period.
I don't want people to find me, because I'm not looking to inflict hurt. But I can completely and totally understand wanting to have the source of your pain recognize what they did and suffer for it. I've thought about how my exhusband would react. Would he care? Would it matter to him? Would his little (insert terrible names for dude husband affaired with here) feel any remorse? But knowing my ex, he's such a fuck that he'd probably think it was a good thing.
At the end of the day though, this feeling has been around far longer than when I met him, let alone it be the sole reason.
I say, if it makes you feel better thinking about hurting those that hurt you so drastically, I can't really argue against that. I'd even venture to say that it's normal.