Spend more than four chapters watching Tris complain about being too selfish. She is such a weak character who is too attached to the past. I hate how she relies on other people to defend her. Don't choose to be one of the dauntless if you can't live up to it, sugar! However, when Four is involved she suddenly becomes a strong person and leaves her friends behind. Her stupidity in trying to attract Four's attention made me facepalm myself a thousand times. 
 Moreover, the characters are very poorly written with no viable history or characteristics. You forget them easily. 
 The flirt attempts between Four and Tris are laughable. Her over-dramatic responses to his dry flirtations are despicable. I am getting real tired of her overanalyzing what each look Four gives her means; God maybe the guy just wants a sandwich! 
 The story starts to get interesting when Tris's mom comes for a visit.. where we are enlisted some rather shocking news. But, then it falls back into the continuous monotone that is Tris and her ugly fugly feelings for Four. I hate how gullible she is whenever Four compliments her after publicly humiliating her. I understand it's because he doesn't want anyone to figure out that he has feelings for here, which in turn might lead to them thinking the ranking system is due to favoritism. 
 She has a very immature way of thinking. Instead of trying really hard to figure out what her being Divergent means, she simply goes day by day thinking about Four and what she would do if Four looks at her and when Four can see her in private. 
 This is quite a beautiful story with an intricate plot, but the author failed miserably in keeping the reader focused on the main issue: the factions. Instead, she spends more than 15 chapters explaining Tris's new love for Four. 
 Bleurgh!!