I've gone and done something stupid. I sent a text to the wrong person. I was having a really bad day/week and it was quite catty. The fallout could be quite extreme. I'm wondering whether to go to those involved and have an honest chat about the text. It was a really sensitive text and I'm scared to give details as I could be found out. So far I've grovelled like you wouldn't believe, but I imagine this might not be enough.
I would ring up, be as honest and apologetic as you can, and prepare yourself to lose some friendships. It sounds like the person is a negative influence in your life anyway if you are sending catty texts.