Your D is 19, H's D from a previous M is throwing a baby shower for OW 25... is your stepdaughter older than OW?! If so, that's just ridiculous and wrong on so many levels. Plus OW's a pothead welfare mom? That R has a LOT working against it.

Like Peace said, going as dark as possible would probably be best right now.

"I told him to get over himself and that I didn’t love him anymore (lie) and that I no longer wear his ring."

This wasn't too egregious a slip-- just a single sentence. I wouldn't beat myself up too much about it if I were you.