Board Thread:General Discussion/@comment-26385535-20151207094959/@comment-25926288-20151207132401

It's just a plan to enslave her to his will.

Anyhow, I would say that Rumple did want Belle to go, because he knew what he was going to do. He wanted her to leave because he lost hope in their love and gave into Darkness once again. HE probably bedded her because he (like Regina or Hook) sees the chance to have everything and takes it.