As far as I know, being yourself is a good thing. However, you might be called “selfish.” Then what you need to answer?
If you already feel you are not selfish at all because it’s you. Just move on, say thank you.
And ask a question:
Self. Ish. Ish means ‘more of,’ so being selfish is being more of yourself. Don’t you want me to be more of myself ?”