I can understand feeling scared about breaking up again. I’d feel the same way in the beginning.
Try to take some time to focus on each other and having fun and connecting. When the time is right down the road, you can talk about the breakup. Taking things slowly is a good idea. You don’t want to rush or force anything, or get into a needy place.
If you spent time working on yourself during NC, keep up with those things. Take care of yourself. Don’t forget how awesome you are and that no matter what happens between you two, you will be okay!