Life is too short to stress yourself with people who don't even deserve to be an issue in your life. If a certain person in your life is making you feel more negative than positive, more cynical than open, more of a worse person than the day before, you need to let this person go, for your sake and probably his or hers as well. Your career and life will change for the better when you learn to surround yourself with positive people and keep the negative ones away. Sometimes you have to forget what you feel and remember what you deserve.