Sorry I am old and don’t know much about twitter … does that mean David was trolling Gillian’s social media pictures on a Saturday night and clicked ‘like’ on one of the replies to her picture?

Don’t be sorry, I’m old too :D. Actually, it means that David saw or looked for Gillian’s tweet and read the answers. The tweet he liked was the first in the answers. I bet he has her notifications! He’s so cute, and so proud of her, it makes my heart hurt!