So I felt pretty vulnerable all the

So I felt pretty vulnerable all the way around:

Vulnerable that if I kept dating him because I was enjoying how good things had been between us so far, just letting the future take care of itself, that almost certainly I’d end up getting hurt in a way that would lead me to trash our friendship. (And I always fear losing a friend far more than I fear losing a lover.)
Vulnerable due to concern that he might think I was judging him or treating him as disposable. I truly respect him and didn’t want to hurt or insult him.
Fear that by having this conversation, he might get angry and end our friendship.
Worst of all, fear that after we’d stopped dating I might eventually discover that our friendship didn’t really matter to him anyway — something I’ve had too much experience with in some prior breakups. It’s a sore spot for me. When I say I want to stay friends, I always mean it.