Was the rich young man's sorrow and disheartening the start of his repentance?

In this verse we read that the man was disheartened when he heard this and that he went away sorrowful, for he had many possessions. Wohlenberg thinks that the expression disheartened indicates that the man’s face turned red with shame and adds to this the meditative suggestion that this blush of shame may perhaps have become the morning-red of his conversion. This suggestion can be better connected, however, with the information about the man’s sorrow. He did not leave angry, but powerless and sad. Jesus had made him feel with how many ties he was bound to his earthly possessions and he could now begin to realize what it means that the good Teacher from God left everything behind and would soon take up a cross. It is not impossible that after Pentecost this young man joined the church and that Jesus’ death on the cross also moved him to give much of his wealth to the poor (Acts 2:45; Acts 4:34). We are supported in this hopeful expectation by the fact that Jesus himself had said on this occasion that all things are possible with God (Mark 10:27). But during Jesus' humiliation on earth, he had to experience that such a believing and seeking young man went away from him because the riches of this world attracted more strongly than the poverty of Jesus. God the Father could at this same moment have moved the rich young man toward that one thing that was now required, but he made Jesus lonely and caused him to suffer by now still withholding this harvest from him.¹