Hey I'm no exercise/diet guru, but I've found EFT and mostly raw vegan to be the way to go. I don't do grains and dairy, but occasionaly have meat or eggs. Eating lots of fruit and vegies has dropped the kilos off me. Particularly the green smoothies. And my exercise is only a daily walk and a bit of yoga.
The bf may have an influence. If you are feeling at all emotional when he's gone, or about him going away, you may be feeling the urge to eat out of loneliness or whatever. If you do EFT on that then you won't feel the urge to eat.
Joy to you