If other people are repulsed by Hyde's appearance, why is jekyll not repulsed when he sees Hyde's image in the mirror?

In the text we learn that Jekyll was not at all repulsed by the reflection in the mirror, and in fact experienced “a leap of welcome.” Hyde was younger and stronger; he was also a bit smaller. He loved living as Hyde and enjoyed his debauchery; through Hyde he could do whatever evil he liked without guilt. Jekyll often tried to right the wrongs of his alter-ego, but he never felt guilty about the acts Hyde committed.