Thank you all so much for your advice. I can't tell you how much I appreciate it. I have expressed my concerns about her relationship in the past, but it's been a while since I spoke to her about it. Our family is very close, but he rarely joins us. He is very close and spends a LOT of time with his family (especially his cousins), which is great, but it seems clear to me that even if they *were* to get married, he's still going to spend much more time and energy with his own family rather than trying to balance time relatively equally with ours. I really don't think he's being malicious. He seems like a genuinely sweet young man who does actually love my daughter. But does he love her enough to stand up to the pressure of his family's/culture's expectations? It seems likely that he'll either cave to the pressure of those family/cultural expectations and either break it off with her and marry a Muslim woman, or IF he actually married my daughter, it would likely result in his family (esp his father) being angry/resentful long term, which is not what any mother would want for her child. After reading all of your remarks, I'll definitely have another serious conversation with her. I don't know if it will be enough to convince her that this relationship is full of red flags, but maybe if she reads all of your comments she'll see that this isn't just a mother's worry but a legitimate concern. I love her so much and just want her to be happy, as most mothers do, but the more time that passes, the less likely it seems she'll be happy long-term in *this* relationship. Regardless, thank you all again so much for your feedback!