Nicky and Jason/David

I always tried to read in some sort of connection in this conversation:

Bourne-"Why are you helping me?"

Nikki-"It was difficult for me...with you"

Thats literally JUST below the line of how much information I'd need to dissect those lines. So yes, hopefully it is addressed further in this summer's sequel

For some reason I doubt it'll be of much importance. She lures Bourne out of hiding after 12 years. That's a long time. Yes? He remembers everything, but I doubt it'll be addressed. I was kind of hoping for flashbacks at least, as it seems like SPOILER SPOILER SPOILER SPOILER

Julia Stiles is going to bite dust. It's so awfully similar to Marie's story. The chase, not in Goa this time, but in Athens, a sniper, explosions, boom. It's a shame, really. They built such an interesting storyline around Jason and Nicky and now they're not going to use it?

It was definitely romantic, because that was the director's intention, as he states in the audio commentary on the hard box DVD of Ultimatum.

Plus, would you really risk your life for someone and be prepared to go into hiding for the rest of your life if you didn't feel anything for them? This is clearly hinted at a former relationship.

You're barking up the wrong tree. It was definitely romantic and she wasn't hinting at the Berlin scene, because she asks "You really don't remember anything?" And he clearly remembers Berlin. So what she's referring to happened before his amnesia.

They were in a relationship and that's what the authors intended, as stated by Greengrass in the hard metal DVD box of Ultimatum.

Plus, the original script with deleted scenes of Bourne Supremacy also suggests a relationship. The original is uploaded somewhere. They just cut that part.

You asked this question before. And I replied on the "Jason Bourne" forum. It all makes sense. Trust me.