While V is not in the running for most deceitful, she is not above putting the needed spin on statements, as with 41 and 323. So assuming he confessed to using Blackwing as a diversion, while not impossible, is a stretch.
Probably not, at least in the sense that he would like to go back to correct it. Which puts us back to saying there is something very strange about Blackwing, which has affected everybody's memory of him.