My husband is having an affair. He is in a very high profile job,l where it is not smart for him to get involved with anyone.

Lawyers.com offers general information and not legal advice.  You are seeking legal advice, which cannot be provided in this forum, as there are several variables that cannot be accounted for without an interview that makes it possible to discuss the particulars in your situation.  For example, your question appears to focus on the termination of your health insurance.  Yet, you raise this question in the context of a separation.  There is a major difference between what happens at the time of separation vs what happens upon entry of a decree of divorce.  Generally, when parties separate, the party providing insurance may continue to provide coverage until the parties are divorce.  However, once a divorce is entered, most insurers are no longer able to provide coverage for a former spouse.  Employers are generally required to offer what is referred to as COBRA or stated differently, a continuation of coverage.  However, if you are ill and cannot work, a court may require your spouse to pay spousal support, a part of which could be used to pay for your health insurance coverage. In order to answer your question,  I recommend that you meet with an experienced family lawyer in your area to discuss the significant facts in your case, so you can make an informed decision regarding your overall best interest.  Please note that most lawyers charge by the hour.  The consultations may be based upon the lawyer's hourly rate.  Therefore, you need to discuss fees and costs associated with the initial consult in advance of the meeting to avoid any confusion or misunderstanding. Best of luck