步步高升： Promoting to a higher position
出入平安： Safe trip wherever you go
郎才女貌： talented guy and beautiful lady
天缘巧合： a destiny given by heaven and a wonderful match
天作之和： a match by heaven
心心相印： a complete meeting of minds
永结同心： to be of one mind forever
相亲相爱： to be kind and love to each other
百年好合： a harmonious union lasting a hundred years
永浴爱河： bathe in a river of love forever