Suze Howard

The audience knows Suze has jealous issues when Gus flirted with the moms at Cassie's birthday. She's an alcoholic who likes to hang out with the teens including McKay. She does join along side Maddy's side after learning Cassie's involvement with Nate. And let's not forget, she cheated on Gus with the girl's dad which was mentioned in Cassie's freshman year.