For Ron, all I can truly say is Ouch for his pride, but rub some salve on it, Weasley twin style, and get over it. Or have his jealousy make like a newborn baby and head out.
It looks like ALL of the girls are getting intrigued concerning their dating of Harry. And I think more than a few of them will take up the offer to learn Occlumency.
Author's response
Well, you know what they say about a good book. Never introduce a character, object, or idea without a purpose...
That said..what is a Morag McDougal?