Is my guy friend manipulating me? Please give me some advice on what i should do?

i think that a friend of mine is manipulating me. there have been a few incidents with him which i think proves my point. he pretends to be caring and for my own good. but i have also noticed that he can be very jealous if he sees me talking to or texting another guy. i was out for a few drinks with my him recently and a few of his lad friends. there was one guy i had never met before as he was a college friend from outside town. we got talking and we seemed to get along quite well in my opinion. i didn't fancy him but he was a nice guy to talk to. i then got a text message from my friend from across the table saying 'if you get with my friend im not gonna talk to you anymore' he's 26 years old by the way and behaving like a teenager. i thought it was a pretty childish thing to do. when ever i get talking to his guy friends he gets so jealous and accuses me of ignoring him and not being a proper friend. and just a few days ago i told him i am back texting an old friend who is also a guy and he is someone i have a lot of feelings for. he accused me of being caught in a stupid rut and that i should listen to him and not text that particular guy anymore. he then accused me of being ignorant with his friends and all his friends said the same thing to him about me. i feel like i cant win with him. if i chat to his friends he accuses me of ignoring him and not being a good friend and he also accuses me of trying to get with them. he told me his friends don't like me why would i bother talking to them if that is the case. im thinking of just cutting all ties with him. i told him not to bother texting me again because i am that angry with him. i haven't heard from him in a two days now. i think he has influenced other guys and turned them away from me. he has a background in psychology so im sure he has a few dangerous skills in manipulating me and others.