Emotional affairs and ongoing friendships

Should my husband and I discontinue our friendship with another couple simply because the man and I became involved in an emotional affair? It's over now, and my spouse and the man's wife have taken a firm but conciliatory attitude towards the whole thing. For obvious reasons, we've also suspended our normal get-togethers for the time being. Quite frankly, this has been one of the hardest aspects of the entire situation. It's a huge loss for all of us. Now that the affair is in the past, do you think it would be okay to go back to "life as usual"? Or should this special friendship be permanently ended?