Do I change my circumstance or my thoughts?

I have so many conflicting beliefs about ending my relationship. He’s SO amazing, but I also have a manual that includes things like “he should tell me good morning and he should tell me he loves me every day. He should be sure about wanting to be with me even if we have to be long distance for a little while.”

I like my manual. I want my partner to do these things. At the same time, I love my boyfriend and am afraid that I’ll never find anyone better than him.

I don’t know whether to change my relationship or change my thoughts about my relationship. Will I still be unhappy and want more from another relationship? I’m just really scared to let him go because he’s so great.