I cannot sympathize with you. Your dad have an affair in china, setting up a second home. The one to blame him should be your mother. You have not mentioned anything about your mother. She should be the one who cry. If your  dad is 63, you must be in your 30"s. You might have your own family and kids. Your home should be with your husband and sons and daughters.

I went through some of your reply and learned that your mum has died some years ago. Your Dad , being a widower, should have his right and need to find himself a home of his own. You are also married. You have your family. Why don't you try to under stand your father. At his age, all he has would be find a new partner for  the rest of his life. After all, he has his humanly need as a man and as a adult. Put your self in his shoe. Try to undrstand the feeling of the seond "mother". Poor woman, she married a Hong Kong man and not being accepted by his grown up kids. Can you not see the situation from the other angle.