Job relocation may doom marriage

I'm at a wits end dilemma here. My wife and I have been married for almost 10 years, and immediately after we married, we relocated to her hometown where I had no family, no friends, etc. I got a great job offer for a place I wanted to work for (at the time), and it was a great idea to move. Fast forward years later (and two kids), and now I'm in a bad career position with no meaningful employment for 2 years, the bill collectors are merciless, and I'm stressed to the max. I have a potential job offer in another city closer to my family, but she's balking at the idea of moving. Her claim (and I'll grant it's legitimate) is that she has a job, and with my recent job instability, she doesn't want to immediately relocate. I'd agree with that, and would be a fool if I didn't. However, I get the feeling that it's more than that. I am truly convinced beyond a shadow of a doubt that she doesn't want to leave her hometown. I honestly believe that should I take this job, which will better our family's financial situation, it won't be long before some slimeball shows up to serve me with divorce papers. Truthfully, there isn't much love in the marriage. We sleep in separate room and have for 18 months. Sex and intimacy are nonexistent. When I mention any possibility of jobs, relocation, etc., I'm met with 1) disinterest and 2) the same response of "you have to do what you have to do". I can honestly say if it weren't for the kids, I'd take this job if offered immediately, and she can have her town and family. All I know is I can't live with bill collectors calling me nonstop anymore. I feel like I've done everything possible to make a career work here, and it's been to no avail. This potential relocation position, while not a slam dunk, is probably the best chance I've had at securing full-time employment in 2 years. I'm tired of feeling like a deadbeat, tired of feeling unloved, but am scared to death of leaving and losing relationships with my children. Any advice appreciated.

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