My GF had this experience very early in our Kitesufing. Kite got caught on a steering line and powered up due to the leverage effect pulling her down
She ditched to safety, but was getting pulled into the slack lines So she ditched that too.
Thankfully no line wrapping around her and the safety boat came out to get her.
She had the right mindset, fuk that shit! detach from everything, it's a kite. (kite would've blown on shore as it was cross on if it got lose)
The kite was still attached to the buoy, they disconnected the kite from the lines and they cut the line to the buoy. Trying to save the bar & lines
One of the lines was nicely 'melted' from the friction created
She was a little shaken up to say the least
Next day we talked about it and she went back out. Better to get back on that horse or you'll never get back on it
We both avoid buoys as much as we can now