<human>: I have been with my wife for 10+ years, dating for most of that time, married for a few years.  No kids, if it matters.  In the last year or so I keep having these intrusive thoughts about leaving.  I don't know where they're coming from or how to make them go away.

I don't understand where this is coming from.  Our relationship is generally good.  Things aren't perfect, but they certainly aren't terrible.  We have been through worse periods in the past and I never thought about leaving.  I'm still attracted to her, we spend a good deal of time together and we still have fun when we do.  I don't think it's a "grass is always greener" thing either, because being single again seems like a lot of work.  It's weird, it feels almost like part of me is looking for a new challenge.  Which if that's the case, that's weird, because I tend to be a bit lazy.

I haven't directly told my wife about these feelings, because that seems kind of hurtful, but I have tried to address other issues in our relationship.  I thought maybe it was coming from one of those other issues. But while we have addressed the individual issues and made things better.  It seems like they weren't actually connected to this feeling because it remains unchanged.

Any ideas where this might be coming from, or how to make it go away?  Thanks everyone.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Nothing in particular is wrong with my marriage, but lately I can't help but feel like moving on.  Not sure where it's coming from, want it to go away.