Most BPs want to ambush their prey from a safe vantage point (their hide), so when they're hungry, they often "stay in" but peek out at night, waiting.
Yup, you blew it by taking away his "cover", poor! Live & learn, better luck next time. And don't COOK the prey, just thaw & blow-dry the head right
before offering & quickly before it cools off. If he seems interested but is still too shy to take it, leave the prey near his "doorway" (of the hide he's in), and
turn out the lights & leave him be. It may disappear sometime later...& resist the temptation to peek as you may again blow it at just the wrong moment.
Just wait until morning to look...& don't forget to toss it then if it's still there...it will be getting "ripe".