KEVLAR is seperate from Shell, created in a divergent timeline where Flesh Angel fails to stop Centipede Girl from pulling out the strange power inside Shell.
KEVLAR does not want to be associated with Shell, because he does not want to be associated with me. He hates me...
Instead of fleeing from the thing that crawled out of him as the reality was collapsing, he killed it and absorbed it's warped power. He now hunts Shells for
the beings inside of him that collapse the universe, allowing him to absorb the energy before the timeline implodes.