Wait, did you not get the ending where the main character gets a drink that has to much sugar and drinks it immediately, after the main character passes out. Like you know when people get whacked on the head they get (knocked out, aka passed out)
eh just by trying to do everything i could in each weight stage, note i had like 22000 money, the hardest part (which is the cause of the many days) is to keep the protagonist from going to the next weight stage before you want her to, so i lost many days for that ( or to see all special interaction, for exhaple casino jamie, or to see all dialogues and immages from dates with your love interests)