It sounds like you have been through a lot in the last few months. And you do have a lot to think about.
I am sure you have heard about the "rebound relationship," which is typically the relationship that occurs after a tragic break-up or like in this care, the death of a relationship partner. Please do understand I'm not trying to label what you had as a "rebound relationship." It's just a term. However, having said that, this COULD be true for the man with whom you are in love. Of course it's not for you--you even have been thinking about getting a rented home, moving away from your husband and daughter. So I know you have strong feelings. I just want you to be sure that he is as committed to you as much as you seem to be committed to him.
It sounds like your beloved his very wise. I think he put a block on you through CMC (computer-mediated communication) in order to make you stop and really think what you would be giving up if you were to create a life with this man. He sounds very sincere and selfless.
I would like to ask you a few questions to help me better understand the entire picture. The more I understand, the better I can help you. Does your husband know about the affair? How old is your daugher? Does she know? If she is till rather young (not close to graduating from high school), will you still have partial custody and be in here life? Last but not least, do you love your husband?
Again, I ask these things in order to better provide a recommendation. Thank you again in advance for responding.