^This^
I'd leave it for a week to settle back down again then try this :-
I feed evenings as they're nocturnal, dim lighting , leave to thaw near the viv , wait until he's under his hide , then with viv doors open , hold the mouse in tongs and heat with hairdryer 10 to 15 seconds then INSTANTLY dangle it in front of the hide entrance. They usually grab it and drag it inside to eat . You mentioned he's shows interest which is a very positive thing .. just keep warming then offering IMMEDIATELY whilst it's still warm ..
Good luck !!
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