His brother and sil trying to ruin his proposal.

So I'm not even supposed to know about this, but someone slipped and I know when (Saturday at dinner) and he invited his family, no big deal, but his brother doesn't like my favorite restaurant.

So his brother is trying to push us to go to his favorite restaurant (I don't like it, I can only eat maybe a bowl of soup and a piece of rib for $40 while everyone else gets buffet like experience because I don't eat) I'm allergic to almost everything on the menu.

We're paying for them to come out with us, $20 a person, and $10 for their son.

Any advice? I'd really like them to come....

Keep in mind; Not my fault I know.