My fiancée said I could have one last fling before we settle down but she won’t speak to me after I broke her one rule

DEAR DEIDRE: MY fiancée said I could have sex with someone else before our wedding – but I broke her only caveat and fear I’ve jeopardised our relationship. We are smitten with each other but I don’t have a lot of experience with women in general. I’d had just a handful of previous relationships before…