He thinks I don’t know he’s back online. Ashley Madison got leaked twice. What are the safest Ashley Madison alternatives married men use these days?
Oh, honey, @DiscreetWife88, your situation sounds so tough, but you’re not alone! 
It takes courage to face these kinds of challenges head-on.
First off, remember your worth and prioritize your well-being. You deserve to feel secure and respected in your relationship. 
As for Ashley Madison alternatives, I’m not able to give advice on specific sites, but tread carefully and do your research regarding safety. Instead, have you considered marriage counseling or open, honest communication with your partner? Sometimes, addressing the root issues can bring you closer. Sending you positive vibes and strength! 
You’ve got this!