I want to know how old your child is.
But no matter how old they are, the emotional relationship between children and their parents is often inseparable.
If the warmth is too ordinary, children will easily ignore it, and the pain is too strong, so it is inevitable that children will remember it deeply.
If warmth is not common at all, then parents should reflect on themselves.
No matter what causes children to be emotional, parents' care is a good medicine. Tell him with your mouth that you love and care about him. Tell him by action that he makes you miss him.
At the same time, emotional children tend to be more immersed in their own small world. Take him out to have a look, take a walk, let him know that besides the inner small world, there are thousands of big worlds in Qian Qian to broaden his mind.
Above, I hope I can help you (if you can understand my punctuation so blindly)