Hi, laliquepsych, I'm not sure of marriage traditions in Indonesia but I would suggest you remind your boyfriend that only your aunty has schizophrenia whereas his uncle and cousins have it so he is perhaps the biggest gene carrier and if his parents want natural grandchildren, they will have to risk his marrying someone anyway? I would learn about his uncle and cousins and how their lives have been affected by the illness and share about your aunty, what you think of her and how well she does/does not do and also have him remind his mother that you two are a different generation and your children will be raised with more understanding than was available for his uncle and your aunty.