I just put this question on hold, after it had received several close votes (in addition to several people suggesting it is off topic but not voting..). I believe this is off topic for two reasons:
First, it is "tell me what to do" and it's impossible to really evaluate or understand all the factors in that person's situation to answer well.
Second, the core of the question is (as I said in my comment there comment), "in order to best protect my job, when my girlfriend is in a lawsuit against my employer, should I talk with my boss and disclose the relationship?" This is a question that requires a lawyer familiar with the asker's situation to answer. Information in a comment suggests they are living in a foreign country as an expat and cannot easily just quit their job, too, which makes it even more complicated.
However it's somewhat popular and had 5 answers and so I want to open a meta discussion to discuss it in more details.