I agree, your pup is lonely. Does your bf not want her upstairs because she's a "dog" and is dirty? I only ask because my mom is of that mindset. She didn't want him here to begin with (we didn't live with my parents when I first got him). But to keep my mom happy and make sure Kaji is also comfortable, I take on a few extra cleaning steps. Those are:
-weekly baths
-puppy wipes, I wipe his Mr Peeper after every pee brake he takes, and wipe his feet every night.
-If his aim is off that day, I give his belly a quick wash (a little soap, warm water and a towel dry)
-Basic obedience. Just having him listen and really know where it is ok to potty made a huge difference in my mom's attitude toward him. He goes all by himself!
It made a huge difference for my mom that she holds him now and even lets him sleep in her bed!! Just a thought.
