HELP!!! HELP NOW!!!!?

Hi there! I have something I really need to decided... My boyfriend & I have been together for 4 months. We have so much in common its unreal! Both want futures together, both grew up in similar situations, and pretty much get each other. I'm so in love with him! He even asked if I'd like to marry him one day. He's great...... but too controlling. Tries to keep me away from my friends because their "bad influences," Tells me not to where shorts because their "skank" shorts, I can't talk to guys anymore because he gets jealous fast & then threatens to dump me. He's a great boyfriend other then the controlling part. My friends tell me to dump him but i lost my virginity to him & its so hard. Help me please!!! I need advice! I don't know what to do.