So I found out my partner of 12 years has recently had an affair for 3 months. I'm not going into the specifics as it's irrelevant to my question. I always said that would be a deal breaker and no matter what, I would leave. I can't say I ever thought it would happen to be honest, but here I am, its happened and I haven't left (yet). Parts of me want to stay, I love her, she's my everything, I'd like to try work it out and she says the same, but the other part of me thinks I'd be stupid to trust her again as it will only lead to more heartbreak in the future.
Those who have been through this and stayed, do you regret it or have you found your relationship to be stronger after? Also those who left, do you regret not giving it a second try?
I ask that those who haven't been through this, please don't answer with your hypothetical answers, before finding out I'd have given advice to leave but now my opinion isn't so black and white.
TIA