Take a deep breath and relax. Go light a candle. Brother I have done it you have done and we will continue to make mistakes along the way. THIS IS NOT A DEAL KILLER! Maybe for tomorrow but not going forward.
Dust yourself off and regroup. Give her time to think on those words you gave her a lot to think about.
The important thing is not to beat yourself up over it because that is what I do all the time. You see my convo's 99% I over do it but I always rebound and so will you.