The only Chimera!Shiro Iāll ever accept is the ācloneā wasnāt ever a clone, but Shiroās actual literal body that like 60% of his soul got seperated from and uploaded into the BlackLion as a safe-keeping OOPS
That Black really did find Shiro (or, his body) and itās running around with 40% of a soul and just feeling outright physically terrible and emotionally out of sorts and drained.
But Soul!Shiro doesnāt know that. Soul!Shiro feels lost and replaced and why canāt anyone hear him?
Body!Shiro senses Soul!Shiroās animosity and backs off when BlackLion seemingly rejects him, and tries so hard to get Keith to stay because...BlackLion...just doesnāt want him. (The Lion actually does. But what a mess with a Split Shiro into whatās fast becoming two seperate entities that hate eachother. And itās the Lionās Fault. She tried to save her Paladin but lost that tuggawar and ultimately ripped him apart.)
(And Body!Shiro grows just as convinced that heās Not Right, that heās WRONG, maybe...even a clone. An imposter. Where is the Real Shiro? Heās so sorry. He never wanted any of this. Heād give it all back...but he doesnāt want to lose it, either.)
And Allura eventually does restore Shiro.
But Body!Shiro canāt accept that he is Shiro. Soul!Shiro now has ātwo menāsā memories and emotions. One body, two partial souls out of sync and repelling eachother.
Shiro survives, but BlackLionās grief is harrowing. Shiro wants to trust the Lion, but his body&soul(s) are still in flux, even if the trauma of it all wasnāt so raw.
Allura takes over flying with the BlackLion, and bears the brunt of the Lionās grief and shame, while doing her best to reasure Shiro that the Lion will always be ready for him when he is. The Bond will never be forced. But if Shiro is willing to give it another go, so is the Lion.
Shiro doesnāt reclaim his seat with Black immediately. Instead he slowly falls back into the old rhythm of coordinating and planning the other Paladinsā movements. He feels like a coward. He wants to fly again. But he canāt bear of flying with anything other than Black, but his own fear and shame at his cowardice is so much rawer than he remembers it being when it was āonlyā flashes of repressed memories and feelings of torture, or two sets of memories overlapping as a labrat.
Itās easier to fall into āJiroāsā Role and still do something to help. āShiroā is just too difficult.
But, the gentle tug of the Lion remains. And one day, months after being restored, they fly.