Am i awful

There was this T/A in college people was talking about him even before i got to know him and according to their talking i developed the ideo that he is the (cool playboy) type of a guy *it made sense cause he was hanging with a girl of our age at the time too* so when someone would mintion him i would be like they say he is a playboy i said that to some friend a couple of time but then we starting talking and he is actually nice i still don't know if what peolpe say is true or not but i feel guilty