You have a valid point. You should expect that if you are together this is a relationship especially if you are giving and giving. When someone gives and doesn't get something in return (I mean a give and take relationship) this can lead to resentment. You may be cautioned that if he doesn't want a relationship then he shouldn't accept your help. It sounds like he is getting all the benefits of a relationship and none of the responsibilities. That is not a good sign. You both should be fulfilled by the actions of the other. It doesn't have to be monetary but to claim that he doesn't want a relationship when he is having the benefits is very one sided. I would remove some the benefits of a relationship since he "doesn't want" one. Don't pursue sex - but he doesn't have the benefits of this either. I would be very clear. Function as a friend or function as a girlfriend but don't offer benefits from both worlds. He is way too used to getting both.
Please press accept; this is the only way I am compensated