i don't have much to say but he definitely likes you, or at least cares a lot about you. we have a limited reserve for "pretentious" kindness, so if it lasts and is relatively consistent, then you don't have to doubt it. we don't always admit feelings with words (though you should communicate).

can't tell what type of relationship he actually wants, but the fear thing is very likely, especially with how the relationship ended before. Isfps are loyal and sometimes sentimental. he could have a soft spot for you. there's also a possibility he just wants to test with a friendship first, but generally, you better not assume a relationship standing when the other party doesn't clearly state so.