I'm sorry, but I think it's pretty selfish of him to "want you back" when you've suffered so much with uncontrolled bipolar. The flatness you're experiencing will more than likely go away with time; it did with me after I'd been on Zyprexa for a few weeks. You have to give these medications time to work and you have to take them consistently for them to work.

Don't let him (or anyone else) sabotage you, unintended as it might be. Stay on your meds as prescribed. You'll get back to being "you", only better because your disease will be under better control. Think about it!