Dude I had almost the exact same thing. I didn't look at the score first but I just turned on the stream, knowing they should be playing. Dimitrov was up 5-3 and it was setpoint (on murray's serve). I really thought he would win it.. I thought it would be impossible to have the same thing happen to him in Miaimi as in IW but obviously he pulled it off
Watching Dimitrov at 5-2, setpoint was like getting high from eating too much fructose. Then he netted all those serves immediately after and I was back to Earth. It was like watching a Ferrari going from 120 mph to 20mph in 5 mins!