Should I be worried about my new bf becoming controlling?

I dated a guy in the past who was controlling and abusive. He would always tell me I dressed like a slut. He gave me so much crap if I wore skirts or shorts. He would get mad if I even spoke to a male. I was miserable with him. He destroyed my self esteem by calling me whore, fat, discusting, ugly, smelly, gross. I am now dating a new guy who treats me decent. He has not done these things yet. He admitted to me that he was controlling with his ex. He got mad if she wore shorts. He would get mad if she talked to men. This set if an alarm inside my head. I do not want to be told what to wear anymore. I do not want to be told who I can talk to anymore. I am scared that he will become controlling like my ex. He has not showed any signs of this yet other that covering my chest when men walk by. Saying that he does not want them to look at me. I have large breasts and sometimes guys look at them. I cant help it if guys look at me. It happens to every girl. Should I be worried? Or am I being paranoid because if the way my ex bf treated me?