Dear Mrs. Wang,

I wanted to thank you once more for welcoming me into your home last fall when Siyuan and I were visiting Northern California. It was inspiring to see how much you care for your children, providing them with material comforts and aiming to instill good manners and values in them. I know the language barrier kept us from communicating more deeply, but I felt most comfortable in your presence and appreciated the kindness and hospitality you have extended to me, even introducing me to your wider family. When you referred to me as your future son-in-law in your family's group chat the following week, I was filled with joy and pride that you had judged me favorably and deemed me worthy to be with your daughter. My intentions with her were always upright, and your comment got me thinking more and more intensely about the prospect of us building a life and a family together. For much of the past year, this has been the motivating drive in my life. I have been looking forward to seeing you again, and meeting your son also, at her graduation in Los Angeles past August. 

Sadly, things have not turned out the way I was hoping for between your daughter and me. She made other plans not long after I returned to Germany last fall: Before my next visit in the spring, she had begun an affair with an older man from her program, which she has kept hidden from me for the following six months. It was only a few weeks before her graduation when she finally broke up with me, but even then kept lying about the circumstances. I still don't know the whole truth of the matter, but it is clear that she has changed a lot over the last year. I'm afraid it has not been for the better, and I worry that the people she surrounds herself with are not a good influence on her. 

I understand and respect that, as her mother, you will always support your daughter. Given how deeply you care for her (and how you felt about me), I think that you should know what has happened, so that perhaps you can bring her closer to what is right again. 

I really enjoyed getting to know you and your family. 

Sincerely,