do you think this could actually be the case?

I was engaged to a guy who is pakistani and I am black. We had what seemed like a wonderful relationship and all of a sudden he seemed distant and different. He began talking more of his muslim religion and the fact he was going to become very strict in practicing it. I am not muslim and he was aware of that when we began dating. He proposed to me and gave me a ring. To make a long story short.....right up to the last he claimed all was well between us and nothing was wrong, but I could feel he was acting different and out of character. The last time I saw him was at his place and as i was walking away he said" I love you"; and I said it back to him. Just something about how he said it i
knew it was over between us and from that day till now I have never seen or spoken to him again. Yesterday I saw on his MSN profile an update that he had gotten married!! My cousin thinks maybe his family arranged this marriage and he just couldn't tell me what was going on for fear of hurting me. When he and I met that last time..I caught him staring at me when he didn't think i was looking and when i looked at him he put his head down. I just feel he wanted to say something. I don't think he was cheating, but my quiestion is....in the Pakistani culture, how important is it to marry and date in your own religion and race? Thank you for any help. my heart is broken and I'm just looking for answers.