Tris does a whole lot of playing with life and death. Tobias is always around to bail Tris out. There is way too much kissing. There are arguments, and all is made well in the end.
The factions have pretty much collapsed, Dauntless has split, and Erudite is trying to take over everything. The Factionless have quite a few Divergent in their midst. Amity tries not to get involved. Abnegation doesn't know what to do with themselves. Marcus is obviously should not belong to the faction he is in for mere selfishness. Candor gets attacked and end up victims of a simulation because they were blackmailed into an alliance with Erudite. It's all just one big mess.
As a person, I prize honesty tempered with kindness above most things. Honesty to be cruel is never helpful. I guess that would make me some Candor/Amity type Divergent. Who knows? Anyway, Tris and Tobias lie to each other all the time and it makes me absolutely furious. This is not something that people should be promoting or looking up to. Their entire relationship is based on lies. If they would just sit down and have an honest conversation with each other and not hide things, they would be a much happier couple. Instead, Tris lies and goes and does something that could kill her. Tobias saves her. So she does it again. Meanwhile, he is lying to her as well. What have we learned from this? That lying obviously accomplishes nothing. Whenever the truth comes out, what does the other person say? "I wish you would have just told me what was on your mind." Telling the truth is not as hard as people think. Their whole relationship kinda makes me furious.
As for the book, there is a lot of drama, way too much kissing, a lot of lying, a whole lot of really stupid choices, and then some fighting. I was unimpressed. Do you remember The Goblet of Fire? It's the book where Harry Potter turns into a jerk. He whines a lot that no one understands his burden and that even his friends aren't there for him. This is, of course, not true, he's just being overdramatic. Tris was just like that in this book, and I hated it. I want to read the third book in hopes that things get better, but right now... I'm just angry at this book and the amount of people who read things like this and think that acting this way is totally acceptable.