The whole story with Lochlan drinking the whole tainted protein shake and apparently only getting a little sick and that's it was ridiculous. Even if it didn't kill him, he would have been very sick - he wouldn't throw up, pass out, regain consciousness, throw up again, and then apparently be just fine.
It was not a surprise the husband was Rick's father. I did gasp seeing that his girlfriend died. I liked her character.
Watching the girlfriends be "involved" in the shooting and then leaving seemingly "un-traumatized" was silly as well.