It is usually only necessary to provide a concise statement with a maximum of 5 or 6 examples of the other party’s unreasonable behaviour. You should detail a course of conduct or provide specific incidents with dates to satisfy the court that the behaviour of the other party is so unreasonable that you cannot be expected to live with them. It is generally not necessary to provide extreme or aggressive examples and it is usually advisable to provide the other party with a draft copy of the Petition before it is issued at court so that the allegations of unreasonable behaviour can hopefully be agreed in advance thereby reducing conflict. If you and the other party have remained living together in the same household for more than 6 months since the last incident of unreasonable behaviour, then it may not be possible to obtain a divorce on the basis of the other party’s behaviour.