how to weight gain and increase my appetite

This is wat realllly happens wiv me tooo.........:S my chachoo took me to his home blaming my mom that she dont take care of me n it waz of no use coz i really cant make him understand that i dont feel hungry my self............my shadii is going to be soon n this wat every one says u look so young i hardly look like an 18 yrs old gal .............i feel good about it coz loag apni age chupatay hei they try to look younger and its a blessing for me kei i my self look younger.....anyways well im happy like wat im my fiance n inlaws dont have any prob but it is me who wants to increase a lil weight so ppl stop botherin to talk about me ....duuuhhhhhhh
anyways i know its not that possible so um happy the way im