>> «I know that bastard Stark had something to do with this, and I am
>> going to need everything to find out what. He won't outmaneuver me
>> this time.»
>
>This sure does make a pretty sharp contrast with "...but she wouldn't
>mind encountering this American again" from the flashback.

There's also a 'difference' between the two instances from her perspective. The first, she tried to take something from him but was stopped. In the second, he took something from her and succeeded.

This is, of course, in addition to anything else that has occurred between them over the years as was stated above.