Aww, I'm sorry! But yup, that's normal! :(
Other people seem desirable as moms (even you to other kids) because they dont discipline your kid (or you other kids) as you do your own. You're with them everyday, you're responsible for them and their actions so you *have* to discipline (which is not a dirty word, it's just a dirty job that we have to train our children so they'll learn appropriate behavior and be more pleasant to be around as they grow up. And by the way, ever notice how your kids can be perfect angels for other people, but not at home?! So of course they're not as disciplined elsewhere as they are at home with you!)
I remember wishing (more than once!!!) that my mom wasn't my mom, that someone else, anyone else who seemed nice to me at the time, would be instead. Fantasizing that I had an evil step mother, that there is a fairy godmother out there for me, and so on. (why are there so many stories like this?? because that's a form of imaginary escape to let off the frustrations before getting back to dealing with the situation)
I even wrote my mom (as a tween, I think) after an argument a letter detailing all the things she was doing wrong! Later as an older teen I found it in her drawer and felt bad, because I was just as in the wrong as she was! And I'm getting a GOOD dose of that from my 7yo son now who gets upset at me for yelling at him to go brush his teeth or get dressed or whatever it is that I've already asked him for 5 times in a row to do!
I think your daughter handled it well. Don't take it personally, and know that she has a right to her private thoughts and feelings, and continue to discipline(TRAIN, not punish) her in the way she needs to handle things. (ie, shouting at you that she hates you and go slamming doors is not ok, but writing a letter in her journal, or punching her pillow, etc, is ok.)
And what's up with the scary movies?? Does your husband watch them often when the kids are around? Can he wait till the kids are asleep to watch movies and/or cut back on them?
(and I bet Ms. Rotherberger's own kids have at times wished someone ELSE was their mom too!!)