Why wont he look in your eyes when he says he loves you?
Oh, honey, it could be anything across the spectrum. He might not mean it, he might mean it too much. He might be shy. Men are not socialized for comfort with big emotions. I have experienced versions of what worries you with people I was quite sure did care about me, so I know it can happen. But your asking this tells me you are worried about more than just eye placement. If you tell me more, I will try and help you more. I have been where I think you are. Good luck.