<human>: Hey so I really need some advice. 

While I was dating this guy, I pretty much exclusively hung out only with him. However he would get upset at even my chatting other guys on Facebook. Sometimes the conversations I was having on chat would only be 5 lines asking about homework but he would still be upset. Hanging out with guys one on one was out of the question. I never did it. 

Fast forward a bit, and we start to fall apart for various reasons. I find out he lied to be roughly 5 times while I was dating him to hang out with his female friend one on one. Apparently this doesn't count though because she's DEFINITELY just a friend even though they used to like each other. I found this a little unfair since I was practically banned from everybody, even guys I wouldn't have dated in a million years and were totally in the friend zone. 

Fast forward even more. We are officially broken up but we still talk here and there. During this kind of grey area moment, I go out with several friends. All my girl friends were busy so most I hung out with a lot of guys. I found most of them unpleasant and I won't be hanging out with them again, but nonetheless these people were only friends to me and nothing more. But...he's livid when he figures all of this out. He says I'm "unfaithful" and a "boy attention whore" and that I "need boys to pay attention to me in order to function" and ridiculous things like that. I was completely loyal, especially while I was dating him. I never EVER went out with any of my guy friends. 

I guess my question is if this reaction is normal. Am I being unfaithful? Is it healthy for a relationship to never allow hanging out with a friend of the opposite sex?

Summarize the given text in a few sentences.
<bot>: Is it ok to hang out with an opposite gender friend while in a relationship? Ex-boyfriend said it wasn't allowed at all and I want to know if most people are like this.