minimo
Being mindful if the fact that you are now friends with this lady, coukd you possibly arrange to meet her for coffee when neither of you have your GS?
You coukd then explain that, much as you'd like to keep up the friendship, you don't feel comfortable with the way her GS speaks to her, nor his dreadful remark when given the birthday present.
You fear that if such behaviour goes unchecked in front of YOUR GS, it will confuse his perception of acceptable behaviour and you certainly don't want that.
Suggest that you meet as friends on another day.
I definitely think it's unacceptable and wouldn't expose my GC or GGC to anything like that.
Good luck.
Hysteroscopy using spinal block/epidural




