I'm really scared. What do I do now? My mom, chronic worrier, pointed out to me that if I get sick, I have no

one to help me. At 34, I'm separated from my hubby, no kids, no friends and no close family. She also said she feels she has no one either, since dad is 78 and has mild dementia. I feel bad for her but also for myself. What should I do? I asked hubby to leave b/c after 8 years of marriage we had not had ONCE. Should I go back to him? Wouldn't that just be using him and unfair to him? Our marriage wasn't just about (obviously), but shouldn't I try to have a fulfilling life , physically and in every other way? I'd especially like Christian believers to answer this. Thanks.