General

Should i tell him?

It's essential that you tell him. A normal man loves you because he finds you sexy. This is an essential part of the relationship for him. You might want him to love you for "what's inside that counts". (Yes I just committed a hate crime, too much truth)

If you're lucky he will have noticed you're a bit fat and actually wish you were fatter. So when you tell him he will be really happy.

If you're unlucky he will realise he is destined to be with a fat woman who he won't fancy. If he has any sense he will leave you that instant.

If you don't tell him and you're unlucky he will feel completely betrayed by you if he finds out later and be very unhappy that you're so fat.

You have more to GAIN if you tell him.
4 years