Torn apart and heart broken.

So my SO left me about a week ago. She was going through a lot at home with her family. She is Jewish and I am not. But we have been together for 4 years. And she is the absolute love of my life. Her parents think I'm not right for her and the last few weeks they have really been on her ass. Making her feel bad about who she's with and how they want her to be with someone else. We are both 21. But I am very hurt and broken right now. We are on "break" but it doesn't even feel like I'm apart of her anymore. I don't have anyone to explain my feelings I am a very expressive guy. And I don't care what her parents say. I know I am a great guy to her. I treat her with love and respect and show my love to her every damn day. So I think her parents are 1000% wrong. I will be converting. But her parents think it doesn't count. Me and my SO barely talk it feels like I've lost my best friend. I was having a rough time at work and I expressed that to her then shortly after she said she can't do this and decided to "break it" with me. I'm working all week since my boss is pregnant so I'm running the business for now. But I'm stressed as well. And idk what to do. I want to be with this girl. And so hurt and broken I don't know what to do. I try to make her day better but little things like a simple text or a call. But it's just not working. She demands space and I'm trying to give that to her. I'm really trying to putt an effort. I want to respect her space. I just want me and her to be happy. I miss her with all my heart. I'm going through a lot as of now. Any advice or kind words will help greatly.