She is a teacher and invited him to the school for an "awards ceremony."
Kids on stage singing, teacher comes on and sings Real Love and then asks if anyone has a ring she can borrow. Lady sat next to teachers boyfriend hands him a ring, teacher on stage gets down on one knee and mumbles something which is a proposal. He goes on stage and says it would be an honour to be her husband, and then I realise the ring his fer her, not him!