She's a dog, she doesn't have a vendetta, but you are a new addition to her home so she's going to act differently towards you initially.

She chews your shoes because she likes chewing shoes, but she's not allowed to chew bfs shoes and she's been taught not to, but bf doesn't do anything when she chews yours.

She digs you out of bed because you're in her spot. She's been sleeping with him for longer than you have and that's her spot, she doesn't seem to mind you being there (believe me you'd know if she did) she just wants you to move so she can lie down. Again, bf should be teaching her another spot to sleep.

Ultimately, your by and the dog are a package deal. You need to talk to him about his not correcting her inappropriate behaviour and if he refuses to do anything then you need to decide if it's a relationship you want to be in.