A friend of mine had a very sweet proposal by her husband...
They met when they were in high school, at her mother's house (her father died when she was only a child.) Her husband-to-be was in a band with her brother, and they were practicing in a spare bedroom when she came in for the first time...
Years pass...

She goes to college and he becomes a tradesman... Still very much in love...
One day they are visiting with her mother at her childhood home. She is off in another part of the house but hears him calling her. She follows his voice, and finds him in the original bedroom, down on one knee, holding out a beautiful sapphire and diamond ring
I really thought it was wonderful that he picked the very spot he first saw her, in her mother's house... sigh...
Best wishes for your son and his true love!
