Why use adultery as a reason for divorce?
Adultery, together with “Unreasonable behaviour” are the only two reasons which are considered to be more “instant”, as all the other reasons require at least a two year waiting period before the divorce application can be made.
There can also sometimes be psychological gains rather than legal ones. Particularly when the petition is applied for soon after discovering the adultery. The “guilty” party may have feelings of guilt or perhaps they wish to start a life with the new partner as quickly as possible. In some instances this guilt or desire to move on quickly may lead to more favourable terms being agreed on the financial side of the divorce for the “innocent” party. However we must stress here, the law shows no favour whatsoever to either party, each has the same rights no matter what the reasons for divorce. So this can only have an effect if terms are agreed between you rather than asking the court to dictate them.