Abby is the "good girl" just trying to get away from her own bad past. Travis Maddox is the "bad guy" that she can't help but fall for with all his tattoos, muscles, and charm. Honestly though in this story I kept switching back and forth my thoughts of who was good and who was bad in the relationship as often as they fought. Travis is the bad boy hunk of the school. He fights for money to pay off his bills, and every girl wants a chance on his couch even if he doesn't call them back ever. 
 When Abby meets Travis at a fight it's set. Travis has finally met his match. He bets against Abby that if in the next fight his opponent can't land a punch on him that she has to stay at his apartment for the next month. Travis doesn't know though about Abbys past in betting / gambling and how stubborn she can really be. 
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 In the beginning I shipped them. I was like aw Travis is going to turn around and be the good guy for Abby. This is why girls think that they can "change" the bad guy. Because books like this! This was way too emotionally of an abusive relationship for me to really enjoy what they had going on. He fights anyone who even looks at or touches her. He picks her up and carries her away from situations that he doesn't like her being around even when they're broken up. She pulls him around on a string "unknowingly." No. 
 There were certain scenes where you really got a glimpse into how they worked so well together and why. Honestly though I wouldn't have put up with any of that shit myself. A guy who fights to earn his income is NOT sexy to me. There were so many things wrong with both of them tbh. I guess that's what made them a Beautiful Disaster though. 
 I think Kara who realized their co-dependency relationship from the get go, and Parker were the only sane ones really in this book. They're the ones who will be going far in life ha. (hide spoiler)]