Friend group

You both are friends for very long and have a friend group , but some of them hate each other , your bff , alex he likes you , your friend nathan , he hates you , both of you are enemies , james , he likes you and is friends with everyone else , kate , she is your sister , she is overprotective of you and she hates your enemy , Jake, he hates everyone , lily , she hates you and likes your enemy , Aaron, he likes you , one of you guys are killing everyone in the friend group but you all don't know who it is , can you find out before everyone dies?