It is possible that you have been workaholic and hence have left your wife alone in the house due to which she has ended up in an external marital affair. Since this sounds to be weird for you and indigestible you could apply for a divorce with the help of top divorce lawyer Singapore. Also, because of generosity you could think of giving some maintenance amount for her. But, your stupidity would not let her realize her mistake. So, you could avoid giving her the maintenance amount and then make her realize if the guy she has chosen is truly good for her. Your lawyer would support you in several ways of which not supporting financially is just one thing.