PLEASE HELP ME SOON FRIENDS...?

HAI...I am 18 years old,5'2'' tall 70kg/154lbs girl.My husband will come soon.So I want to loss my weight soon and want to appear b4 him as a slim girl.I am an asian black colour girl,so any tips to gain more white colour?My husband left me and went to job in an another place after our marriage with in a month.So any ideas for how to treat him in bedroom?Please answer me soon.