How do you make someone feel special?

I’m in a very tough situation right now. I really had a promiscuous past, and my boyfriend doesn’t feel he’s special to me. Because I had slept with other men before we started dating, he thinks I don’t have feelings for him and he doesn’t feel special to me. He was a virgin when we dated and I am his first. Another problem is that most of the men I had done it was his friends. We had a lot of fights about my past already and I’m starting to get sick of it, but we talked about it and we promised we’re gonna try our best this time.

How do I make him feel special? What are the little things I could do to make him feel it, that he matters to me? That I love him? We really do have great sex, but it’s just not what it should always matter, right?