from my experience, get out of the marriage, lawyer up to get custody of the kids, and hopefully they're old enough to see the absurdity of jws.
i disagree with people who are offended by your question, you have every right to think about this. i left the jws in 1999 and stayed a faithful, caring, supportive husband until my jw wife cheated on me in 2008 b/c i wrote a novel that became a love story based in the jws and she had been messing around with 'worldly' dudes for a while and pulled the ...oh, my husband is an apostate.... card to get out of getting in trouble for effing around on me.
i'm not sure how old you are, but my ex left when i turned 38. i thought my life as a single dude would be over and lonely.
far from it. i live in san francisco, so being in an ubran area makes getting dates A LOT easier. women are majorly attracted to men who have been in long term relationships....kids or not.
i have friends who have never been jws who have major dating success in their 40s with children.
dating now is better than it would have been in my teens/20s. most of the women i've dated are at least a decade younger than me and smart and beautiful and absolutely amazing.
it kind of helps that i'm a published author.
if you're having any problems getting dates, then look to yourself to improve who you are as a person. do yoga, exercise, indulge in your dreams and pursue them vigorously without even thinking of dating. you'll find women will come to you with the same passions you develop and intimacy is far greater than just screwing around.
though screwing around is fun, but something i've learned to just get out of my system and move on to only having intimacy with women who i've connected with on other levels.
make lots of non-jw friends, dudes and ladies....enjoy their company and how great they are...it's amazing the wonderful people i've met outside jws and after the awful divorce that my ex tried to use to sabotage my novel release and get away with cheating on me. there are awesome people on the earth, most are not jws or have any affiliation.
i'm dating someone now who grew up in the church of the nazarene. she's wonderful. we're taking things slow (not sexually, we connect more than i've ever connected sexually with anyone in my life).....i'm saying jws are not unique, there are other people out there, comrads, lovers, waiting for an excellent man or woman who has had to divorce b/c of being a jw.
the best years of my life as a single person have been after my divorce.
the novel that 'ended it all': confessions of a teenage jesus jerk.
actually, it restarted my life now that it's published. :)