@DelilahDelia
He says it feels like I’m trying to build my own life without him,
And you should have a life without him. You aren't married, you don't live together, it's important that you have your own life. Hell, DH and I have been married for 35 years and we each have 'our own life' if that means having interests and hobbies the other doesn't share. It makes us a more interesting and well rounded person. And that's a positive in any relationship.
I don’t do the things I already should be doing
Since when is he the boss of you to say what you 'should' or 'should not' be doing?
I don’t have time
Says who? What he means is that all your spare time should be tied up with him.
I’ll make new friends
So he doesn't even want you to have your own friends????? Seriously, think about that. He wants all of you all to himself or only have friends he has approved? Do you even see your 'old friends' or are all of your friends now comprised of his friends?
I’ll be even more tired when I see him.
Again, it's all about him, isn't it? You are entitled to be as tired as you want to be from doing things you want to do. You aren't required to be Polly Perky because he wants you to do what he wants to do.
He is the nicest and kindest, most genuine man I’ve ever met, and he treats me like a princess but I’m not liking this side in him that I’m starting to see more and more.
No, he's not. He's had a mask that he's been wearing to convince you that's what he is. But the mask is slipping now because you're being a little too independent for his tastes. You're seeing the real him: controlling and self centred. And it will get worse, and if you were to marry him or move in with him it will become intolerable.
As I've read before on MN "More red flags than a May Day parade in Moscow!".
Run.