The writing is bizarre, they sort of force the personal lives of them all on us, whether we want it or not to make it more of a soap, yet they leave out the fact Stamp has got a girlfriend and she is living with him, and now all of a sudden she is written into a storyline and will no doubt be a future storyline because she is an illegal immigrant.
Surely if they wanted Tony to have a girlfriend and for her to be a storyline, then for us to have any interest in it, it might have been more interesting to see him meet her and see how the relationship developed for her to be living with him, rather than just plonk her in the middle of an investigation of theft.