Country singer saw him a few tables across at a Hollywood restaurant.
The country singer, 22, and John, 34, were spotted going for a meal at Tower Bar inside West Hollywood's Sunset Tower Hotel in their separate groups.
John told Rolling Stone this week that her song 'Dear John,' reportedly about him, was ''a really lousy thing'' to do, ''cheap songwriting,'' humiliating and ''bulls**t.''
However they avoided a confrontation over the matter when Taylor asked to be moved to The Other Side of the venue.
A source told Page Six it was ''drama central'' when the she was about to be seated and noticed that her ex-boyfriend was dining with a friend nearby.
The insider added: ''Taylor very visibly -- in front of the entire restaurant -- demanded to be moved to the other side. The bar's usually an Oasis of calm and privacy for celebrities and power players, but this was drama central.''