Hi Ankita
form 1023 is for notification of incorrect answers. Do you mean form 1022 ? If yes then it’s always good to tick all the columns. When you get your visa grant later, it’s mentioned in there that you have to tell if any circumstances change. That’s what I did. Now she just have to mention that she’s seperated due to abusive relationship or whatever the reason is. But if she’s going through other stresses due to this relationship, call the police.