Uhmmmm, Antibiotics can make for really quick apparent recoveries from strep! And if they actually did a culture, and diagnosed it, she had strep. For all of her other faults, I don't think this is one of them. The bet with S10 was a really bad idea! But you knew that!
I think that things are a little less black and white in this word, as compared with when you were deployed. My S20 has been having trouble adjusting (in my opinion) from his recent deployment to Africa. I'm not saying in the least that D18 isn't manipulative, and probably a thief, and that your W is a raving lunatic. Just that on top of all that, you are still adjusting to the "real" world, as well. I don't know what to do about that, other than to realize that it's there.