The name Paul was revealed in Bizarre Adventures #27. The last name Bailey was used by Prime Sentinels in X-Man #30, which they got from Professor Xavier's files.
Paul only appeared in one panel during Jean Grey's funeral. Whatever happened to him was never revealed, though he was no longer around when Nanny stole his kids and his wife Sara was absorbed by the Phalanx. Possibly he divorced, not being able to cope with Sara's connection to the X-Men, or he passed away.