The miscarriage, Lee cheating on Abi, his depression and now Lees secret about the money are all adding layers to his departure storyline so I'm intrigued to see how they tackle it.
I think the wedding will go ahead, to link Whitney with the Carters. I'm also wondering if Whitney will find out she's pregnant again once Lee has left for good. Whitney doesn't really have any other links to keep her in the show except her friendship with Lauren.