Complex sentence: When she turns away from his touch, he sadly remarks that his face is the reason that she does not love him, but Christine assures him that it's his soul, not his face, that's truly repulsive.
Split into simpler sentences: When she turns away from his touch, he sadly remarks that his face is the reason that she does not love him. But Christine assures him that it's his soul, not his face, that's truly repulsive.