Love your enemy

13 year old Crystal has an OK life at school. she has her good friends and people who aren't her friends but are nice to her. but like most people, she also has enemies. one in particular.

Jack Graham.

A cute playboy with a bad attitude and a hate to cats. they walk home the same way and have most classes together. but they hate each other and are always getting into fights with each other in and out of school.

One day, he follows her and discovers something he shouldn't. when Crystal's best friend is on the verge of dying in school she calls on Jack for help because he is the only one who knows where she goes. he finds out the truth about her and helps her out.

Jack needs her help when he is locked out his house and has nowhere to go. he becomes friends with a cat who he used to bully, earning him access to the warmth of Crystal's house while her mother goes out.

The two become frienemies.
Will it escalate into something more?
Furthermore.....
Will the two learn to love their enemies?