help my boyfriend's daughter has no boundaries

I love my sweet boyfriend but when his daughter is around it is stressful for me. She has no boundaries. Our children are around the same age but mine are not allow to act the way she does. When she spends the night she refuses to sleep in her room. Mine aren't allowed to sleep in the bed with us when my boyfriend spends the night. She will bust in the room without knocking. He won't lock the door because she will have a fit. If my kids do that, he says something. She will go in a store and misbehavior but she will still be allowed a treat. My kids aren't allowed to act that way and they don't. Help!!!!!!!! This is somewhat of a deal breaker. All kids have to be treated equally and follow the same rules. How do I approach this subject with my boyfriend? 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors