Am I being Selfish...or do I have a point?

Well if you live there full time too and there is a strange guy coming in and out yeah you should know him and what is wrong with your mother !?! She doesn't know him either. He could sneak into your room in the middle of the night and you or worse! I don't care if your 2 or 22 your Mother should protect you. If you did not live at home and are grown then it is not of your business. But this don't sound like the case. Shame on your Mother !