for better or worse
1. With good or bad effect, depending on how one looks at the matter.
The historian did justice, for better or worse, to the careers of several famous men.
2. Under any eventuality; forever; always.
Alex and Masha decided to leave Moscow and come to Chicago, for better or for worse.
3. (Marriage vows) Forever, for as long as one may live.
With this ring I thee wed, for richer or poorer, in sickness and in health, for better or worse, til death do us part.