sure...IF you think that they are sincere about being your friend, and have the qualities that you look for in a great friend,,,,honesty, laughter, thoughtfulness, understanding, sensitive and loving, then i would DEFINITELY keep them as a friend. good friends are hared to come by.
furthermore, many people just dont pay attention to things like that...last names included. they are lucky to know THEIR last name! ~~ be glad that they at least know your FIRST name! :-)
well, i hope this helps, at least, a bet. be ez on your friends...they are just a bit ignorant....they are not being insensitive or rude...they just have their head "in the clouds!" Good Luck!
-Anonymous