Loving someone for who he is, does not mean the other party can continue being who he is. If you're egoistic, it is your privilege knowing that your other half still loves you. I think, it's only fair you try to change for the better. How else will things work out between 2 person?
No communication, No effort, No mutual understanding. No intelligence to think. No compassion to feel.
That is why it is neccessary for both parties have mutual understandings, and put in effort to know each other better.
There's not a need to put in effort to love the other party better because it is suppose to be effortless.
