Reveal Your Truth
How often do you think the other one should know what you think, feel, want and what you need?
How often do you hope that the other one does what you want because he should know you? How many times do you feel hurt because the other one didn't do what you expected?
The other one doesn't really know your world. He can't remember what you feel, think and need.
He's in his world. It helps him if you let him know your world. Tell him what you really think, feel and need. And it's possible he doesn't understand you. He may not be able to fulfill what you need.
Then it needs your attention to take care of yourself. Being there for you. To meet your needs.