Crossing the Line/Spoilers

Spoilers from the All About Us episode, Crossing the Line.
All About Us spoilers: Conflicts arise as secrets are revealed.
How will things be the same with two sets of ex-couples?
AAU's frenemies Nikki Merrick and Sierra Jennings renew their old feud when they learn shocking secrets in the beginning of their senior year.
Sierra's ex-boyfriend, Logan Haines is still upset over Sierra dumping him. Unknown to him, Sierra was developing feelings for her ex-enemy, Matt Wright, who once bullied Logan.
Then when rumors about Sierra and Matt are revealed at school, Logan confronts Sierra about it and she reveals that Matt was the reason Sierra dumped him.
Feeling bad for Logan, Nikki goes to Logan to comfort him and they share an soft kiss. Surprised, they agreed to pretend that it didn't happen.
At the school library, Nikki and Sierra are talking about Alicia Alcott landing an new record deal and they talk about Sierra's drama with Logan. Despite her agreement to not tell anybody about her kiss with Logan, Nikki reveals it and Sierra is shocked.