Should I inform OW's husband of the affair she had with my DH?

[JasmineFlowers]

DH had an affair. It is over now, and we are three months on.

DH is the main object of my blame and anger - and trust me, he's been feeling this - but I am also furious with the OW . I know there's a school of thought that says that it was DH who made me promises and broke them, and she owed me nothing, but I disagree. She was complicit in doing something terrible to me, I think it's ok to despise her for it.

Anyway, I have her address. Would you write and tell her husband what she did? in all honesty, it isn't for noble reasons, because I think he deserves to know; it's because I want to firebomb her life the way mine has been. I want her to deal with the fall-out of the affair too. I'm not proud of this, but I don't see the point in deluding myself.

I'm aware that there might be repercussions for DH, but frankly I don't care. He'll have to suck up the consequences of his actions, won;t he?

However, I know that I'm not in the most rational state of mind, so what are your thoughts? Should I keep this just as a revenge fantasy, or should I go ahead and actually write the letter?