To have a kind heart in a cruel world is to at times deny your own happiness. I believe we all at some point in time put someone else about our own well being, just for the sake of peace, however, whose peace are you protecting because if you always take the high road and they never once consider how you feel is that true peace.
The time will come where your peace of mind is needed to push forward and you will have to come to the realization that shirking so that others may feel the big only serves to slow progress for both of you.
Life is a journey we can't take with others until we find content within ourselves and we can't find that content nursing someone else's ego.
We all have to be ok on our own if we are ever to survive being ok with someone else, so for the sake of all you can become find the courage to claim happiness even if you must be selfish at times because happiness is an inside job and if you are walking on eggshells to keep someone else happy then know neither of you is truly happy.
So for the sake of self love and love for all others allow others to find their happiness and never fear claiming your own.