To have a slight gloat?

[Laughinginyourface]

Yes I may be being unreasonable but I don't really care. I don't want to go into too much detail, but finally the ow has flown back to where she came from with her tail between her legs and hopefully shes not coming back

YANBU at all, OP!
I'm angry on your behalf reading about OW's messages, and I would definitely be gloating too in your position. Hopefully the situation will come to bite ExP hard as well.

Now the best you can do is to enjoy your life while their perfect relationship falls apart.

YANBU OP! Gloat away!

She sounds awful and I don't blame you for gloating.

What goes round, comes round. Enjoy, OP. The OW really did have this coming to her.