It's normal for dogs to discriminate about who they want to play/interact with. It can even change from day to day depending on how they feel. Some days, they may not tolerate puppy brash behavior and the next they're playing with them like puppies themselves.
Trust your dog. If she doesn't want to interact....so be it. Trying to force it can make it worse.
Trust your dog. If she doesn't want to interact....so be it. Trying to force it can make it worse.