Was I wrong to not go with him to visit his family? He's upset?

He's leaving to go visit his family (lives about 4.5hours away) and asked me i I wanted to go, I said, maybe antoher time like on a holiday weekend. He kept pressuring me, but i still said no. He was upset told me that he doesn't think I'm ready for marraige, because i didn't even want to go with him to see his fmaily whom he has not seen in a few months. I told him I didn't think it was a big deal that I thought this time he can go alone, and the next time we can go together. He mentioned that he doesn't know when he'll be able to go again, so I just said to him I'll go. Now he doesn't want me to go becuase he doesn't think I really want to. He thinks I'm saying yes now because I can see how disappointed I am. I love this man very much, and it saddens me when he think I'm not ready to marry him. He talks about all the sacrifices he's made for me, and I coulnd't do this one little thing. I'm confused and I still think he's hurt, how can I make this up to him? Was I wrong?