The Roommate Disaster - One

Billie and Tristan starts off good. Rules in the house and all that stuff. Then things get complicated when Billie discovers that she's starting to like Tristan. Apparently, there's a spark running along in the apartment that the two of them are ignoring. When they face it, it ignites and cause a fire and chaos in their lives. As it stirs to each of them, they get closer and closer and then farther and farther.

They start off as roommates. Maybe they'll end up something else?