The context of the following conversation is Riley and Sydney went for a hike. Sydney tripped and Riley made fun of Sydney for tripping.:
Riley says Sydney got so mad at me and called me immature..
The friend responds Why did she call you immature?.
Riley responds Well she was hiking and tripped while going up the trail and I started laughing..
The friend responds Why did you laugh did you at least help her when she tripped?.
Riley responds Yes, I did but it was knee jerk reaction and I couldn't help but laugh..
The friend responds I hope she wasn't hurt after she tripped while hiking..