My neighbours 5 years old daughter keep bullying my daughter which is the same age. Always taking turns on her and it's getting worse. The other day she said: when my friend comes back from her holiday we are playing together and you are going to die. On another occasion they were playing building up a house indoors and was heavy raining when she said to my daughter: I will stay and play indoors and you go outside and stay in the rain. What should I do? Let they continue to play together or just avoid? P.s they're neighbours next door.
Help!