I don't think the relationship would have lasted that long.

For obvious reasons, the relationship would not last much longer.

They fell in love and the relationship lasted until the end of the war.

The relationship began in the 1820s and lasted until his death.

Her relationship with Edward would last until his death in 1910.

He has devised a 125-point test to tell if a relationship will last.

This relationship would last until his death in late 1893.

Their relationship lasted about 16 years, from 1985 to 2002.

It is most likely that this relationship will not last.

With all the others Richard has held something back, knowing that the relationship could not last.