Every single hip-hop class I've seen was for solo dancers dancing in a group and not two people partnering up. I think if you are thinking of hip-hop as a partner dance, it may be from those "Dancing With the Stars" type of TV shows. But it's not like that when you take it as a group class.
You should really sign up for the hip-hop classes at Arillaga. I took one winter quarter of last year and had a great time. The music is awesome, and it's a good way to get a workout without feeling like you're working out. Not to mention it helps lower your stress. I took the class with a friend but ended up knowing tons of other people in the class. A lot of people were there on their own. You are really dancing the whole time with loud music playing, so you can definitely brave it on your own!