Smoking is an absolute deal-breaker for her. He always did smoke, and so she couldn't imagine herself with him. He stopped 6 months ago, they met up at a party soon after & have been dating since.
I just saw him outside a shop finishing a cigarette. He said recently he had been tempted, but hadn't. Either he was lying, or that could have been his first one for all I know.
Should I tell her, or stay out?