Spock
The repeated "issues" experienced by his calendar cohort tipped Spock off.
In a 21-day period, Uhura's Communications staff committed more errors than occurred in the prior 1.293374 ship's year. As First Officer, responsibility for the ship's efficient operations lay squarely within his domain of responsibility.
He dare not exercise that authority if he wanted to remain physically able to perform his ship's duties and those other duties he enjoyed with Nyota.
Kirk's message restored hope to the Vulcan that "normal" and "routine" might soon return to his speech and thoughts about his job and his bond.
Complexity did not delay his decryption of Kirk's message; the captain selected a cypher Spock would easily recognize. In times of stress (which included 36.199263% of his encounters with his mate), Spock performed this calculation mentally to regain his balance when managing emotions he hadn't considered part of his logical makeup - until he met Nyota Uhura.
Using the same cypher, Spock responded with a "suggested" delegation of responsibilities.
Despite their identical DNA, Spock had no intentions of letting his "other" self take his bond mate on an extended vacation.
Consistent with their recovery-of-the-recovery plan, Kirk offered Uhura an extended medical leave with her mate IF she would take it away from the Enterprise. Kirk also volunteered to foot the bill for up to four weeks of time off anywhere in the galaxy (such was his desperation to keep his "baby" - commonly known as the Enterprise).
After messing with Jim's mind for a week, Uhura agreed with some provisos.
Her demands had the effect of spending every last credit of Jim's swimsuit calendar earnings over the next six weeks. Kirk broke even... narrowly.
Letting his mate chart the course, Spock found himself in San Francisco in a VIP suite at the Fairmont Hotel at Ghiradelli Square for two weeks. From there they would spend an Earth month at the camping pavilion on the Uhura compound.
Spock awoke wishing he were dead.
The inside and outside of his head refused to move in the same direction, giving him an angry case of vertigo and a skull-splitting Vulcan headache. The mistake of shaking his head to clear his vision still had him reeling with a stomach more like Uhura's than a Vulcan's.
After consuming massive amounts of water and performing some half-assed meditation, Spock began to reconstruct the prior evening.
While affectionate and playful with Spock, the reconciliation and physical forgiveness he'd hoped for with Nyota had yet to occur. Her shielding over the last four days prevented any telepathic hanky-panky on his part to get her buck-naked and buck-wild.
Spock calculated a 97.02763% probability that his wife remembered the swimsuit calendar events as more than a dream.
Spock calculated a 99.99999999999999999999% probability that his mate deduced her memory of said calendar events had been tampered with.
So Spock slept with one eye open for 20 straight days. By yesterday evening, a very haggard and anxious Vulcan shared the luxury suite with a very calm and relaxed Nyota Uhura.
As the mental fog swished around his head this morning, bits and pieces of yesterday evening came tumbling back like so much flotsam...
=*She'd cooked in their suite - Uhura style. More than half the dishes were plantain, a surety to turn him docile - laid out on his back on the bed purring like a jungle cat waiting for a tummy scratch.
=*She'd poured glass after glass of the pumpkin punch she'd made especially for him.
=*He'd chased her, intent on terminating this dry spell of intimacy, when -
He'd awakened this morning feeling like death warmed up and slopped on a plate.
Wandering around their suite confused, he found her note. It aggravated him:
"Ashayam,
You were sleeping so soundly, I decided to let you be. Some of my old football team are playing a pick-up game in the park and I thought it would be fun to join them. I'll be back this evening.
Think about what you want for dinner. Rest well!
Love, Your Nyota"
Spock prowled the suite trying to identify the annoying rumble setting his headache off again - he located its source in his own chest.
Nyota was playing American-style football. Tackle, no-pads American football.
Spock hated tackle, no-pads American football - when Nyota played.
She always ended up under a pile of males. He'd almost ripped Kirk's limbs off for tackling her during a game when she played in a summer league after her junior year.
Suppressing the screaming pain in his head, Spock dressed in workout clothes and left their suite, obsessed with assuring that the only body on top of Nyota's was his.