Will I be entitled to financial support from my husband if I confided in him that I am Lesbian, before I filed him for divorce at the rabbinical court, and asked for maintenance ?

As a rule,  a Jewish wife is entitled to maintenance from her Jewish husband throughout the duration of their marriage, right up until they divorced at the rabbinical court . There are, however, situations where, because of a wife's behaviour, whether  it be by virtue of positive acts or omissions, she may lose her right to maintenance from her husband during the course of their marriage.

One of these situations is where a wife systematically refuses to have intimate relations with her husband, without a justifiable reason or defence, as you may have, because of your sexual tendencies. Where a woman does not have sexual relations with  her  husband she is likely to be considered a 'rebellious' or 'quasi-rebellious' wife  and, as such, is at risk of losing her  right to maintenance under Jewish law.