Marry in haste, repent at leisure
Marry in haste, (and) repent at leisure.
Prov. If you marry someone you do not know well, or decide to marry someone without first carefully considering what you are doing, you will probably regret it for a long time. Sally wanted some time to consider Sam's proposal of marriage; she had heard the saying, "Marry in haste, and repent at leisure."
Marry in haste, repent at leisure.(old-fashioned)
something that you say which means if you marry someone too soon, without knowing for certain that they are the right person for you, you will have an unhappy marriage It's true I've only known him for six months and I know you're thinking 'marry in haste, repent at leisure' but I'm telling you, he's the man for me.