Long time reader, first time poster!
I think there is a very weird dynamic between Austin and Joy, and I agree with those saying he doesn't seem very into her. I wonder if he initially really did genuinely like the more spunky, outdoorsy, fun-loving Joy before they were courting?? Sort of "Joy before she knew anyone was watching". Seems he has nothing but disdain for this more clingy, whimpering, "kiss me, kiss me", simpet that she has become.