He probably wants to know what's going on in her marriage. He can apologize for the incident with the masseur. And offer false support, he will hypothesize his fake help and at the right moment, when Anna is defenseless and under his influence, he will use it. He will offer false help, that he wants the best for their marriage, because he likes David very much. He will tell Anna what he knows about David, maybe the truth or lies. He may have such an idea that he will tell everything he knows about David the truth and he will gain in Anna's eyes and he will want to quarrel Anna with Chris.