Thanks all, for your valuable responses. Have shared these with her this morning. She's reported back that he's started liking tweets that he never did before.

Agree with what has been said. Used the term gentleman as something us more mature people (age) say.

No, she didn't give bank account details nor did he ask for money. Thinks it could be a fetish as when he mentioned about preferring women not girls in one of their chats, she stated she was not a "Mrs Robinson" type. If you're a certain age, you'll understand this! He can't judge all girls by his failed experiences. Using the word girl means early 20s.

She hasn't responded to any of his direct messages. Did wonder if his fiancee works shifts (a nurse?) and doesn't live with him. That's possible but just a guess.

She'll let me know if he makes contact again and if she decides to play a game to see what materialises.