She is encountering this now.
She will encounter it later.
There are lots of kids, like Susie.
As you are, teach her how to 'discern' people. Not just friends... but People.
Nice people, do not manipulate you.
Nor use you as a door-mat.
Nor, Bully you.
Nor be mean to you.
Teach her, that you cannot "please" all people. Some people will NEVER EVER be, pleased.
And yes, do not help her make those gifts.
Just stop.
But encourage your daughter to keep telling you her feelings... so that you can gauge what is going on and what is happening everyday.
Or you talk to the Teacher.
ALL of my Daughter's Teachers, TALKS to the entire class, about behavior and what is nice and mean and not allowed. They learn this, in addition to academics. My Daughter's Teachers, have always been glad, if/when I mention things like this going on. And they also speak to the instigating child, too.
Sure, it is childhood. But at this young age, they need to learn this, now.
Teach your girl, to have self-reliance and to be herself... not what others want her to be. And to KNOW... when someone is being mean to her.
Which Susie is.
She is being manipulated, because Susie knows how to manipulate her.
My Daughter is a real kind girl too. But from 2 years old, in age appropriate ways and per her understanding, I have taught her about kids/their attitudes/their intentions etc., and how SHE.... is the one that CHOOSES friends. Not the other way around. She is now 8, and can articulately "discern" other kids. Wisely.
She does not give herself, away, to other kids that are mean or shallow or Bullies or unappreciative.
When/if she wants to give a friend something, I tell her "THINK about it. WHY do you want to do this? IS this a good friend who RECIPROCATES equally?" If not, then it is a waste of time and money and of your heart.
My daughter, understands. She knows, which kids are greedy or mean and not a friend to be friends with.
Your Daughter is not rubbing Susie the wrong way. Susie is just being a jerk.
All throughout life, some people are just rubbed the wrong way... because it is THEM.
Don't force a friendship. Don't be friends with someone who does not want to be friends with you.
There are MANY other people, to be friends with.
Developing HEALTHY relationships. With friends that RECIPROCATE and care, too.