Is it wrong to date your ex husbands brother?

well in my opion it is very bad to go into a relationship with your ex brother. firstly it my just be a trick or skim to see how cheap or desperate u r. the boys might b laughing at you behind your back and pretend to b nice face to face. so i would say it is bad cause u might just start to bring war in dat family if your ex boyfriend's brother really likes you and if he is not trying to use u or c how cheap u r