Lynda may be as subtle as a ton of bricks but she normally has a fair amount of emotional sensitivity. She just would not expect Kirsty to act that role opposite Tom, no matter how desperate she is.
I'd quite like Kirsty and Rex to get together. I like Rex, he really is a decent chap. I wouldn't wish Pip on him for all the tea in China.
Is a scenario where Tom pulls out and Rex steps in possible, do we think? He's too busy really isn't he?