Tosh watched Gwen. She had been staring at Jack's office for the best part of half an hour. Her and Owen had been laughing at Gwen (secretly of course) for her desperation. It was clear that Jack's heart belonged to Ianto but she seemed to be the only person not to see it.
As she watched Gwen rise from her chair, anger spread over her. How dare she even dream of ruining this for Ianto. Ianto was kind-hearted and generous and the thought of Gwen interrpting him and Jack made her feel sick.
In one swift movement, Tosh arose from her chair, blocking Gwen's path.
'Don't even think about it or...' Ianto strode out of Jack's office looking crumpled but content. He made eye contact with Tosh and gave her a beaming smile,which she returned. How could Gwen not see how happy Jack and Ianto were together?