My boyfriends dog bit my face.

I live with my boyfriend and he has a fox terrier cross. He got the foxy as a puppy when we were already living together. He is a small to medium sized dog. He is in tact and a fiercely jealous and territorial dog. He will guard me, other people, dog beds, human beds, couches and above all else my boyfriend. One of my biggest struggles is that the resources he guards, are interchangeable based on who he is with and what environment he is in.

He's bit my greyhound aggressively enough before that my greyhound had to get put under anesthesia to have the wound repaired. He growls and nips people and dogs if he decides he is guarding something or someone. He's really really mean to my greyhound and it breaks my heart because he is such a gentle old soul.

I've asked boyfriend to take him to a behavioarlist. He wont. I've asked him to get him neutered and he said that wont make a difference. He mistakes his aggressiveness for loyalty, and thinks he has it under control by smacking his bum when he is aggressive (which I have read is the opposite of what you should be doing)

For years I've been saying he's really going to hurt someone some day. Finally it happened, and it was me. I went to hug my boyfriend goodnight while he was lying in bed and the dog bit my face, drew blood and I had a black swollen eye for a week. (I got a tetanus shot). Just this morning, I went an hug my boyfriend from behind, and his dog jumped over the couch and ran across the living room at me. It really scared me.

What I have been trying to do with the foxy, is not allowing him on beds or couches, and removing him from situations when he growls or tries to guard something. If he doesn't stop I put him in his kennel outside.

Does anyone have advice on what I can be doing? I feel like it's an uphill battle, especially when my boyfriend isn't as strict with the rules I've tried to put in place.

Any support would be appreciated! I am really worried this dogs behaviors are going to get worse, and ultimately he will hurt someone to the extent he will need to be put to sleep.