A guy is interested in me and doesn't care that I am taken by someone else.
Do you think that you might not be good enough for him?
It's not the issue of me being good enough for him. I just don't like it when men take me for granted
If you are in a relationship already, it is incorrect to find someone else to be with, even if you are being taken for granted. Pick one relationship and drop the other.
Your advice is not helpful. Maybe I should ask someone who is more intelligent. I don't remember asking you anyway.
You brought the situation to my attention so it seems like you want advice. You should make sure the guy who is hitting on you knows you are not interested.