I want to believe you’re right but even though they didn’t include a picture of them together why would a reputable news source put that in there if they weren’t sure it was true?

Reputable news source? Tatler is a photography magazine for the Britain upper class with gossips and celebrity / royals pictures from parties and ceremonies. As there’s no picture with this article, I assume it’s only gossip based on Gillian attending the BFI dinner and the daily mail article following this event. If the Daily Mail didn’t bother you, Tatler shouldn’t either.