This is not the behaviour of a repentant individual even though, unfortunately, it is often the mark of a modern Christian. Many Christians cry out to Jesus to give them the strength to resist the temptation to sin. Then, when they succumb to temptation again, it seems to them that Jesus has let them down, that he's to blame.
This behavior is inconsistent with true repentance, despite being a common phenomenon among modern Christians. Many Christians plead with Jesus for the strength to resist temptation, only to feel that Jesus has failed them when they succumb again and blame him for their weakness.