Separation between husband and wife

My son saad Mahmood married to Rania Saad d/o Late SaleemAhmed 1-1/2 yrs ago. In the year 2018. Due to lack of understanding between the couple their Married life has remained miserable. Rabia was used to confine herself into her bed room, kept quarreling with her husband on lame excuses, sitting idle doing nothing, not participating in house hold work, raising disputes with house ladies on lame excuses. Always threatening of dire consequences on silly disputes, goes hysteric /psychy at times and uses knife for cutting her hand, jumping over the roof, breaking /injuring head with bottles/ glasses. Just a couple of days ago, over a silly dispute between husband and wife, engulfed several tablets of Ponston for threatening and harming herself and get her demands fulfilled. Since entry into our house, she has remained demanding SEPARATION on silly disputes. We are scared of moving her separate alone on first floor, as she may not repeat her psychy habits, harm herself and put the