Slowly but surely - detach and 180

[hopefulinEG]

I need help. I did something really stupid last night. I told a mutual friend that W had slept with someone else. I did not say who but said it was someone at DD school. The friend was telling me how nice W was and bla bla bla and I just couldn't stand it and told her that W isn't as nice as everyone thinks. I did ask her to keep it between us but I can't imagine she actually will because it is too good of gossip.

So either 1) She tells people and it gets back to W and she hates me even more and will never forgive me or 2) it doesn't get back to W but it does get around and if/when we reconciled everyone would know she had been unfaithful. I don't know what to do. Do I call her and say I lied and was just upset she was defending W althought she might have already told people or do I call W and tell her I said something and hope she understands my moment of weakeness. Or do I just not do anything and hope that it doesn't blow up on me. There have been a lot of rumors going around that W had thought I told but since believed me when I told her truthfully that I had not said anything. She said she knew that I wouldn't do that. So if I went to her and told her she would at least see me as truthful and maybe less unforgivable. She could then do some damage control.

I feel so stupid to let myself react like that.