Which episode is the rape of Zhu Huan Gege Wei Zi?

No, during the Great Escape, Wei Zi was alone in the carriage. When the queen sent someone to catch the carriage, she fell out of the window and fell on a stone, so she became blind. Part II, Episode 34

As for the rape you said, it was blinded by swallows and thrown into a brothel. Actually, it's just a few tears and beatings, that's all. Part II Episode 36