“[71] In relation to the circumstances attending the making of the nuptial agreement, the comment of Ormrod LJ in Edgar v Edgar at p1417, although made about a separation agreement, is pertinent. ‘It is not necessary in this connection to think in formal legal terms, such as misrepresentation of estoppel; all the circumstances as they affect each of two human beings must be considered in the complex relationship of marriage’. The first question will be whether any of the standard vitiating factors: duress, fraud or misrepresentation is present. Even if the agreement does not have contractual force, those factors will negate any effect the agreement might otherwise have. But unconscionable conduct such as undue pressure (falling short of duress) will also be likely to eliminate the weight to be attached to the agreement, and other unworthy conduct, such as exploitation of a dominant position to secure an unfair advantage, would reduce or eliminate it. [72] The court may take into account a party’s emotional state, and what pressures he or she was under to agree. But that again cannot be considered in isolation from what would have happened had he or she not been under those pressures. The circumstances of the parties at the time of the agreement will be relevant. Those will include such matters as their age and maturity, whether either or both had been married or been in long-term relationships before. For such couples their experience of previous relationships may explain the terms of the agreement. What may not be easily foreseeable for less mature couples may well be in contemplation for more mature couples. Another important factor may be whether the marriage would have gone ahead without an agreement, or without the terms that have been agreed. That may cut either way.”