Interracial relationship struggles

Having an extremely hard time this week. After getting a fb message from my boyfriends(of almost 2years) brother telling me to take down any photos of me and my boyfriend because he's embarrassing and shaming the family. I decided to post another photo (the one in my profile shot) my boyfriend wanted me to aswell. He doesn't hide our relationship, and never will. I got another message from him telling me to go f**^ myself. I got horribly upset and my boyfriend responded from my Facebook saying "suck a d***" childish , I know. But that also upset me because his brother now thinks that was me responding. BTW, I am a Caucasian Canadian and my boyfriend is Arab(Muslim) from Kuwait. I am very close with his younger brother and another older brother. But I know in the end, they want my boyfriend to fallow what they're parents want. Well except the younger one, he wishes out relationship works so he can be with a white women aswell. I have taken apon myself to learn the language and religion, as I am reading the qu'ran. But converting will still not be good enough for them. I feel hopeless, especially because our relationship is serious. We want to conceive in the next few years and get married. I'm worried and overwhelmed with what might happen. Does anyone have any insight, advise, or been through something similar? I deal with most of this conflict alone. I don't want my family to think negative of his. And I don't want to stress out my boyfriend any more than he is.