- he changes seats in the middle of lecture because he sensed a project coming
- she was the last person without a partner, so he and his friend did a trio with her
- his partner was an asshole so he asked for a swap, and ended up with the extra aka the mc
- they're both slackers and they hate the teacher for doing this
- the teacher ships them
- their respective partners are blowing them off for a hanky panky date and so they requested a pair up
- she sits with him because he's the last person who knows what happened to her ex best friend who died under mysterious circumstances
- she's a bitchy loner, and he finds that hot so he requests the teacher for a group project
