I am finally able to tell you that Younger Son and Girlfriend got engaged a couple of weeks ago!While on holiday in Italy they went diving and Younger Son proposed underwater. A great deal of planning had to go into the proposal including how to ask permission from the non-English-speaking father. He got the message as did Girlfriend after a little confusion: she thought he'd found the ring in the sand! (Not the real ring, you understand, which he had safely back on shore.)
We love Girlfriend and we're very pleased that now we have a wedding in Italy in September 2012 to look forward to!