Expectations lead to attachment,

Then attachment leads to more expectations as well. But to live without any expectations is difficult. What we need to do then is to expect but not be dependent on our expectations.

We can communicate what we expect & then give the other person freedom regarding whether they wish to fulfill our expectations or not.

When U are not dependent on these expectations, U are Happy irrespective of whether they are fulfilled or unfulfilled.

Them being Fulfilled would perhaps give you more pleasure but remaining unfulfilled will not make you sad, you will be at peace and happy nonetheless.