Do differences matter?

So, my SO and I are completely two different people. We've dated for 4 months now, but secretly, since he's a family friend and scared that the family might think he's taking advantage of me since I'm grieving the loss of my mom.

This man has been there for me emotionally, advising and also helping my dad cope up. He always reminds me how much he loves me.

But I feel we're completely different people. I like to take my time opening up and he wants it there and then. For example he's made sexual requests.. like asking for nudes, penetrative sex, all of which I don't yet feel ready doing since I'm a virgin and want to take my time and feel ready.

When I politely disagree to his sexual request, he takes it as if I've rejected him. That I don't love him.

And he says that the only way he can feel love is through connecting sexually. He claims the relationship feels one sided to him as he's always bending to my principles yet I never accept his request.

How can I best handle this situation and make him feel loved?