they are your inlaws girl,most arent nice,what else do you subconsciously they’re trying to make sure you understand that you must be submissive,and obey,in laws often are like that,not all,but a lot,dils are not their daughters so they dont give a crap,besides mil probably wants to compete for ur husband too.is it absolutely necessary for you to live there,if yes,then just care about your family,thank those stairs,just love your husband and dont care much about them,just ry to forget,but if you can move,why dont you slowly start suggesting to your husband that we could move,it might be nicer to have a home of my own,tell him its your dream,but over 2 or 3 months,ask him not to tell anyone! they’ll sabotage your plans! and move the crap out of there,taking their son with you then they’ll be nice and ask how you are