She should have lost more than a pound. In my opinion, I think calories are too low primarily on training days for the workload she's putting in. She's doing 15-18 sets per training day, that's probably around 180 reps on average plus cardio. My guess is that her metabolism has slowed down because she's not eating enough to sustain the big increase in activity level (from sedentary to working out full blown). Adding in healthy fats should help with adding in calories. I'd also encourage her to drink more water. She can get the packets of crystal light to add some flavor to make it tasty.
I'd also suggest taking pictures and taking simple measurements with measuring tape to keep a record of where she started. So even if the number on the scale stays the same she can take a look back at pictures and spot changes in the way she looks from month to month.