I'm going to tell my friend's mom the May/June 2019 IGCSE grades have been out for a while
Why are you going to tell her the May/June 2019 IGCSE grades have been out for a while?
She never asked about my scores.
It is wrong to hide things from your parents. They might not just know you had they yet and it might hurt them to know you have hidden it from them.
I hid things from her because it's not my problem to take responsibility for her son.
If you are embarrassed about your grades you should let them know so you can get help. Did you slack off and fail on purpose?