My other major issue, besides feeling like a lot of the Sam/Pete thing was forced as a tweek (I don't think they meant it as an insult) at the fans, was the scene with the ring.
Let's put it this way:
A black ops air force lieutenant colonel is walking in the park, with tons of people around, within feet, and certainly within ear shot, while her boyfriend discusses the most important national security secret ever.
And she lets him continue, with little more than a 'you know i can't talk about that.'
That bothered me a lot more than the romance. It's making Carter look incompetent. She could got to the US Disciplinary Barracks at Leavenworth for that. I'm deadly serious. No matter how many times she's saved the world.