There comes a time when you have to choose to be rude or choose to let others tell you what to eat.
There are a billion options of what you could do in these situations!
One: Make something healthy & delicious, and enjoy what you eat. Have a little bit of the entree or other meals and count the points as best you can.
Two: Choose to eat beforehand. Have just a little bit of food on your plate, but push it around so it only looks like you're eating it.
Three: Forget the healthy - enjoy the meal as a treat, eat what you want and count the points as best you can.
Four: Choose only one or two of the best looking options for dinner, no need to have a little bit of everything, just a little bit of some of the things.
Five: Have just a snack (apple or salad) before you go so you won't be tempted by most of the dinner, but that you'd still have room for a small bit.
etc etc etc.
So many options. Choose a way to make it work for you! Just remember that you are in control of what you put in your mouth.
You are allowed to say "no thank you" if you're offered more. And you're allowed to ignore certain foods on your plate if they've been put there but you don't want to eat them.