Amy: your husband is wavering, yes. However, he has also reached out to you more recently, than he has in the past. I think that cutting him off now, would be counter-productive. It may make you personally feel "better". but I think it would be counter-productive.
May I suggest that you accept his calls, (if he calls), but only keep listening to him for as long as he talks nicely to you.
My current status: june 2006. Wife ran out and filed D. Finalized Jan 11, 2010, after 12.5 years M. 3 wonderful sons caught in the middle