@LittleMysSister I don't know, only one of my significant relationships ended due to an affair. As upsetting as the end of each of those relationships was, it was only the one with an affair that took me so many years to heal from. Gosh, I think it took something ridiculous like 7 years to recover from the trauma. If my ex had any respect for me, he could have waited until we broke up (it was heading that way anyway), and I wouldn't have wasted so many years of my life with low self-esteem. Honestly, waiting wouldn't have made much of a difference to him or to her in the end, but it would have changed my life.
At the time, I was beyond hurt. I hated him. I hated the OW.
I don't regret hating my ex, because he did a shitty thing, but I do regret harbouring such resentment towards the OW. Society conditions us to hate the other female, but let's face it, she didn't really owe me anything. Maybe basic sisterhood, but whilst she was definitely the OW, I don't know if she knew that. My ex kept two very separate lives in play, and it's entirely plausible she thought we'd already broken up.
I'll never want to be her friend and I have no interest in knowing what she's up to, but I do wish her well.
As for my ex, for a long time, I'd have been reluctant to spit on him if he was on fire. Now, many, many years on, I'd pour water on him, and I'd even administer basic first aid. However, I wouldn't follow up to find out how his recovery was doing.
I am fundamentally a nice human being, and for a long time, I didn't feel able to extend basic human courtesy to him. That's how much he broke me with his actions.
I guess what I'm trying to say is that the end of a relationship will always be hard. However, there's no need for it to be traumatic - would-be cheaters would do well to remember that. If you cared enough about someone at one point, there's a kinder way to end things. Don't have an affair - physical or emotional - just get out first. Ending things cleanly won't have much of an impact on your life, but it will ensure the person you're leaving manages to get over things within a normal period of time, and isn't left in pieces.
I've put the pieces of myself back together, but when something smashes into so many pieces, even with all the glue in the world, it's never quite as perfect as it was before.