Some very good responses here and some light hearted ones as well.
It does seem as if the BF has some issues with your pup. Maybe he is jealous of the time your dog takes you away from him -who knows? He may have picked her put and gone along with it but he may never have really wanted her. Again- who knows but him? I think it wise of you to take a breather from this relationship and see how things pan out. Your pup may be suffering in this relationship and the stress level is not good for her either.
If she came home at 6 weeks it sounds as if she came from a byb or some other less than reputable breeder. Unless there are extenuating circumstances, breeders keep pups til at least 7.5 to 8 weeks. The time between 6 and 8 weeks is crucial to a pup's social development. Some pups are socially stunted by this, some not. I do not know about your girl but despite the BF's attitude toward her, I do not like that she has put her teeth on him to bite. Does not bode well.
If you and BF do not reconcile and your pup stays with you, consider carefully in the next relationship.
I was a single mom for about 8 years. My son wanted a German Shepherd. We ended up getting a second one when the first was 18 months old. I met my current husband and he was terrified of the dogs. I made him feed them. When we started to get a little serious he got the speech. I am a package, you get me, you get the little boy, 2 dogs and a cat. Take it or leave it. He stayed and we will celebrate 20 years in January. Several GSD's later and he loves them as much as I.
My little boy is almost 29 now. His biological father hates animals and we would never been allowed to have a dog. I was raised with them and always wanted one as an adult. That was not the reason for the divorce but I think in the long run we were way better off.
So this may be a painful thing now but sometimes we need surgery to make us better.
Look into training for your pup if you have not done so already. 11 months and it is time for adult food now too. Her weight and height sound fine for her age.
Good luck and hugs to you!
URO3,UCD Aleshanee Windridge "Kayos" CD,TDX,RE,CGC,HIC,TC
PTE,AG2,AN,URO3,UCD Xtra!Xtra! V TeMar "Havoc" CDX,GN,RE,CGC,HIC,TC,BH
UACH,URO1 Tidmores Rising Star Lydia "Mayhem" CD,BN,AX,OAJ,NF,RE,HT,TC,CGC,
Lucky, Wolf, Max