Article continues below advertisementRandy Travis' wife, Mary Davis, is quite literally his lifeline.In a new interview, Davis gushed over their relationship and reflected on the hardships they endured due to the singer's health, but she believes the tough times only made them stronger.Article continues below advertisementMary Davis Raves Over Marriage to Randy TravisSource: megaMary Davis revealed husband Randy Travis' nickname for her is 'hot mama.'"He's so kind to me. He's so sweet to me, you know.