After all, he was a man, who would want to take on the burden another man had grown tired of and kicked aside? There was still another's seed in that belly.
If people found out about this, wouldn't he lose all face?
Besides, at the start, he was quite suspicious of why Director Ding and Ding Meifen would seek him out. Wouldn't it be better to find someone without a wife, someone who could marry Meifen?
To seek him out, when he wouldn't divorce and couldn't marry her, what use was it?
Later, Ding Meifen kept saying she just liked him, admired his looks, and besides, she was only looking for a man to rely on without thinking of marriage. She also said there might be a chance of getting back together with the child's father afterwards, at which time they could part on good terms. Moreover, other men didn't have his magnanimity. As he listened to her, he gradually started to believe it.
