Have you ever heard the term “love isn’t always enough”? Well, it’s true. Sometimes you can care a lot for a person, but you don’t want the same things, you’re not in the same place, or someone isn’t ready to make a step that the other is. It’s always okay to leave. It shows that you have self worth for the things you want and are looking for. It’s possible that you guys can continue to communicate on this. His fears are in a way reasonable if you’ve been fighting, regardless if this is the main cause. Either way, I wish you peace! Just remember that you are capable of loving, and being loved in return. It’s always important to stand your ground with your needs, and you’ve shown yourself that.