Hi dear Sara,
Read your story. Of course, you're right. You can go out with your friends. That's ok. That's the way how serious relations are built. Both man and woman should have their own circle of friends and own interests. Of course, you can have friends together, I mean both friends for you and him. But it's not forbidden to have more friends. You're an adult. You should be more relaxed in relations. Do not be afraid to talk about your wishes.