Buy easy to carry food that are point friendly. Like baby carrots, whole grain crackers, laughin cow cheese wedges, dry cereal (you can bring it in a little bag), FF deli turkey breast, whole wheat wraps and pita pockets.
Honestly, all it takes is a little planning. If you don't have a fridge at work, buy yourself a lunch bag, one of those insulated ones and a few ice packs. Pack your lunch at night so it'll be ready in the morning.
And as far as your bf goes, tell him to keep his hands off your food. If he doesn't do WW with you, then just tell him to help you stay on plan by being supportive and not eating your food. And if he eats it, tell him to buy you more to replace it!