HEALED BY THE POWER OF THEIR LOVE OH MY GOSH
also I theorize with how close the speedsters are with each other, and how Barry feels an instant new connection to August when he becomes a speedster, I feel like the speed force somehow creates a familial connection between all speedsters, and Even when Barry just met Eobard Thawne he wanted to teach and help him. Becoming an evil speedsters severs this somehow I think









