Where do I go next in a distant, coexistent marriage?

Just over 3 years ago, during a quiet moment between wife and me, she asked me if I was glad I married her

I waffled a little saying there were several things in my life a disappointment, my career, my marriage
But that I was still hopeful to be financially well off, that being my priority

Anyway after that where was a bit of upheaval
Separately from that conversation I moved out, I moved back.

We are now co existent

And it's very little conversation, just the bare minimum.
Still have sex
Still polite
I guess it's not uncommon
Where do I go next in a distant, coexistent marriage?
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