Why did Jenny break up with Gibbs?

It's complicated. They were together in Paris, but obviously after what happened with Jenny shooting that guy and Gibbs covering for her, it's was a bit ... weird. Then Jenny got a job in charge of a group on Europe. Gibbs asked to come back with him but she said no. I think it was because she wanted her career more than him :(
But anyway, that's when they broke up and then she came back as Director so they couldn't rekindle anything they had in Paris. But I think that she realised that she really did love him before she died. :(

Anyone correct me if I'm wrong in places, or all of it. I think I forgot some parts.

that sounds right.