Haha - I totally get what you're going though

My husband is bad, but I'm learning that it's usually because he has absolutely no grasp on what good nutrition looks like! Seriously - the boy thinks that fettuccine alfredo can be good for you if you make it with whole wheat pasta...
Maybe your boyfriend wants to support you, but isn't sure how to really do it? Try talking to him about what you're doing, what your plan is, why you're doing it, etc. so that he understands why weight loss is important to you.
And I definitely agree with Icon - it's super important to set your own ground rules and then stick to them 100%. If you cave sometimes, you can't expect him to know when he needs to push you to stay on track.