Hi,
I can read between the lines that you are dissapointed from those relations..... I can guess that you wish it would develop in a different way (faster ? closer ? more physical ?).... you devote much and you are not sure it is worth it (as the reasults are a bit dissapointing). The easiest thing is to run away from a problem.... Running away should be the last option (after trying all other options). Discuss it with him (open and deep) tell him what bothers you and what would you like.... See his reactions and decide. If you want something you have to be proactive (sitting aside won't bring you to where you want).
Best regards,