Board Thread:General Discussion/@comment-28260770-20161213001110/@comment-25375217-20161213001324

He wanted control over love. Jekyll's experiment still left Jekyll behind, it just added Hyde. In Rumple's mind, he would have completely dark no-love Rumple who could get over Belle and accomplish stuff, and then normal love Rumple who would reunite with Baelfire.

(i'm making all of this up shhh)