Nah, partying and hanging out with worldly people won't get you DF'd especially if you don't go to meetings a lot, I mean who in the congregation is going to know anyway? Besides, those who aren't very active are already looked down upon.
I would say her talking about her witness hope is another example of witness guilt. I knew a lot of witnesses over the years who weren't really active, concentrated more on their jobs, making money, etc, but all they could talk about all the time was witness stuff. It gets in your head.
You see, as a witness you don't really view the organization as an organization, you equate everything with god, every utterance whether from the magazines or something an elder tells you is from God. That has a strong effect on the thought processes of the witnesses who are already in constant fear of Armageddon coming and killing them if they aren't good. SO when you have the guilt built up of the human tendency to be "normal" you tend to overcorrect by trying to be more "spiritual", its a word they use, as a way of compensation for being "worldly".
Its all a very complex mental stranglehold that these people are in, even if you were to try to talk to people who have been out for years, disfellowsipped for having sex or something will usually defend the org tooth and nail. It just shows how dangerous the Jehovah's Witness religion is and that you can't just say "its just another religion" because its not, its evil.