They're just starting their relationship. Of course there's going to be a hurdle here and there, and it's not going to be resolved easily. That's just how it is sometimes, communication can be difficult at times, even when both partners desire it. Mitsuki didn't know what to do in the meantime, and Aya is patiently waiting for Mitsuki to approach her. They're navigating their situation on their own. Give them a chance; they're not perfect like everyone else seems to be.
They're just starting their relationship. Of course there's going to be a hurdle here and there, and it's not going to be resolved easily. That's just how it is sometimes, communication can be difficult at times, even when both partners desire it. Mitsuki didn't know what to do in the meantime, and Aya is patiently waiting for Mitsuki to approach her. They're navigating their situation on their own. Give them a chance; they're not perfect like everyone else seems to be.