When returning from the Tattered Spire, if you go to see your husband or wife before going to Hammer your spouse will no longer appear in your marital home, but still take his or her daily allowance. To fix this, invest all or as much of your gold as possible into real estate (so you can get it back), leaving you with as little as possible. Keep sleeping (works best at seven days) until you are broke, and your spouse is unhappy is going to leave you. Return to your marital home and your spouse should have reappeared.