I agree with the others Tipper. Yes, your H returned, but he really never came back to you as the alcohol had him, and still does, in its grips.
I'm not sure what you mean by it possibly being a risky choice by telling him no. It's more risky by telling him yes and keep enabling him to never face himself.
Truly sweetie, by telling him no and losing him, what have you really lost that wasn't already gone anyway?
Yes, do something different. Your old patterns haven't worked. The only chance you really have is if your H faces himself. To do that he has to reach rock bottom first. By continuing the old patterns you're helping him avoid that.