Country star Keith Urban credits wife Nicole Kidman and their "strong marriage" with helping him get through treatment for alcohol abuse. Urban recently completed a 90-days stint in rehab and says his wife helped him handle the ordeal. He explains, "We've gone through a lot in the last three months and I think it's been the strength of our marriage (that) has carried both of us through." Urban slams claims that surfaced while he was in treatment that he'd had an affair with a lingerie model while he and Kidman were dating. He adds, "I know and God knows where my heart is at. I waited 39 years before I got married. It means everything to me to be married. "Like everybody, I really want to do it only once. I'm very loyal in that respect, and committing to somebody means once that ring is on, I'm gonna stay."