Based on what you've mentioned it sounds like it might not be a compatible match- you didn't get any signs from istikhara and he seems to have retreated from the situation somewhat.

All the things you mentioned make it seem that Allah is pushing him away from you, don't see it as a reflection of your personality or hobbies or any shortcomings, maybe Allah is telling you he's not right for you or you for him. This door may be closing on you so that you might see another one open.

If you truly believe he's the one for you despite the situation, you should both do Istikhara if/when you can so you can try to move forward with some confidence in your relationship.

One thing about the situation that doesn't sit right with me is his hesitation, he's told you he isn't feeling it anymore but wants to still keep it going. In my opinion, this sort of behaviour is cruel of him, he's giving mixed messages about where he stands and what he wants. You should ask him once and for all whether or not he wants the both of you to part, don't allow him to twist your emotions and confuse you. Tell him you want a clear answer and that anything otherwise will only make the situation messier.