I think it's great and perfectly normal to hang out with the wife!! Cricket and I are just building that relationhship after a rocky begining, but it's what I've always wanted. I want my husbands partner and I to get along and be friends, so that he has a more fulfilled life.
It was really hard on all of us when Cricket and I weren't getting along.
It doesn't work out for everyone, and if the personalities don't mesh, I don't think it's the end all. But it will take a lot more work.
Right now our biggest issue is how much time is All of us time and how much is their time and how much is our time. Since we're all getting along so great, it's hard to forget that they need alone time as much as he and I do.
Good luck with it all!!