C'mon people. I love Jaime, but you guys should be smart enough to realize that he is not a good person, no matter how much he wants to be. He's not Arthur Dayne, he's the Smiling Knight.
And guys, that's the point of the episode.
Ygritte is a brutal marauder, even more into it because of her scorned heart. Jaime is a scumbag who knows he could be better but fails along the way. The Hound continues to not give a damn about human life, regardless of any softening effect that Arya has on him.
That's the reality.
They seemed to want to turn Jaime more onto the Dark Side than otherwise, because they've been making him a bit too Light lately. He's not a good person.
The only problem of the Jaime/Cercei scene is a combination of the direction and the audience.
The director pushed things a little too dark, without making it more clear about the context (Cercei IS largely just protesting the location and time, not having sex with Jaime in itself - I mean she's pulling his clothes off). It should have contained more of the lines that were in the book.
The larger audience on the other hand, doesn't usually do subtle. (This is why the show has to be more overt about things that otherwise were explained over multiple pages in the books.)
If it's being protested at all, of course it is rape. Forget understanding their characters and how they work - its obviously rape, guyz. Uh huh. Dany's experience was much more like it - not this.
People would accept Jaime strangling and killing his sister in that room more than him more than him having sex with her. You know that.
And people claim that this kills his character. Again, he's NOT A GOOD PERSON. What exactly is ruined here? He protects a city because he wants to be good. He tries to kill Bran because he thinks he is bad. He protects Brianne because he wants to be good. He pushes himself on Cercei because he thinks he is bad. The Lannisters are messed up - all of them.
Those in charge of the episode just wanted to be more clear about that while avoiding characters having sex right over a newly dead body. It backfired, and they should have had a few more clearly consenting lines from Cercei instead of her just reciprocating physically.
Look forward to more of both of then being terrible people while having slight redeeming qualities.
But personally, I'm looking forward to seeing everyone elses' dark sides coming through. The Lannisters are boring me - even after this big protest.