Jack was very confused.
One moment, he was laying on his back, with his shirt off and tucked behind his head (wrapped around his rucksack), reclining and enjoying a fantastic (and closely snuggled) repose with mama in the cozy privacy of the alcove upon a hard stone floor with his eyes closed, then suddenly the room felt a fair bit chillier, and there was grass under his back and butt.
Opening his eye, and looking past mama, who was suddenly quite alarmed at the sudden change herself, he notes that the blanket he had used to cordon off the alcove was "tented" over the top of the two of them, with just their heads sticking out, due to the sudden appearance of a cloudy sky overhead. His eye bulged instinctively, and his cheeks began to color very intensely as he took in the scene around him, before his eye met the bear's.
She had no basis upon which to ground this sudden development, and was in a state of shock, confusion, and disbelief-- and quite frankly, so was he-- The only difference was the blooming sensation of exposure and embarrassment he felt, and she did not. He was rather greatful for the blanket's having dropped over the top of them.
Frustration and disappointment cascaded across mama's mind like a changing tide, as she stood up, and Jack slinked deeper under her, grabbing his shirt from off the ground, and retreating beneath the blanket draped over her back, before emerging several seconds later, with the shirt on, but wrinkled and slightly askew, then busied with the task of folding the blanket up, and stuffing it back into his bag.
This was sure a 'FINE' way to ruin a perfectly good bit of alone-time -- he grumbled to himself bitterly, wishing the hotness in his cheeks would subside quickly. Mama nudged him, then licked his face as he crouched, working with the blanket. She radiated confusion still, but also a bit of a dirty joke-- something along the lines of "This is why you shouldn't wait"
The joke did not do anything to lessen the coloring in his cheeks. This whole sudden development had him a bit of "a mood."
Noting the doctor, and seeing he was carrying a small library worth of books, and taking a few moments to register that the old man was asking very specific questions about specific people he had never heard of, he got a little hot under the collar.
Where the [expletive] did'ya git THOSE!? he demanded incredulously. How did we allz git outside all a sudden!? WHO THE [Expletive] ARE YA TALKING 'BOUT!? What's this "Seed" Bus'ness yer goin' on about!? WHAT THE [expletive] IS GOIN' ON ALL A SUDDEN!?