I’m having doubts what do I do?

So I’ve been dating my boyfriend for a month and a half, and he’s been great and all but I still like this other guy from before we started dating. Another problem is that my bf friends are total jerks and act like two year olds. Him and his friends have gotten in fights in previous years, and when we started dating he promised that he wouldn’t do anything stupid but he still goes off with his friends or he’s rude about other people in front of me and my best friend. (my best friend and her mom don’t like him very much but they wanna still support my decisions). So the guy I’ve liked before this I’ve liked since 4th grade. He doesn’t talk bad about people and lots of people we know are trying to get us together, we’ve even come close once. I know I should probably talk to my bf but I’m scared that he might try to spread something or not wanna let me go. Someone please help me.