Caitlin was captured by Zoom and was held hostage by him, who practically abused her. When he gathered all the metahumans from Earth 2, he let her go, but he left a mark on her, Doctor Henry Allen, Barry's father, said that Caitlin was in shock, which was normal, but she sees Zoom everywhere, and where could she seek comfort? Exactly, with you!

At that moment, you were in the cortex, trying to find Zolomon, until two arms pass behind you, and you already know who it is.