Help I'm in need of some serious direction!

Being home is bad for my health. I've found that one of my friends is manipulative, and I honestly don't know what to do about it. He clearly is trying to make something happen and I don't know what it is, what his intentions are with all of these lies, and who he thinks is going to be his friend after this break is all said and done.
Last Friday is when the shit hit the fan; all I wanted was my phone back at the bar, I didn't know who had it I just wanted it back so I threatened to send a text to my ex....I had no intention of actually texting him, it was just an empty threat....my girlfriend that I was out with knew this, my other friend, I shall call him John, did not. After this part I don't understand what happened but somehow my ex got the idea that I want to talk to him again...not only did he start IMing me at 6am when I was babysitting in the morning yesterday, but also was sending me texts last night when he was bored and driving around town.
He wants to see me, and clearly wants to talk to me....and I don't know if I'm ready for this yet....I can't go back to him, I've been hurt too much by him over the years, this is the way that things need to be.
All I know is what I've been told by my girlfriend after her and John got the argument is that John thinks that I want and need to go back to my ex, that I'm withdrawing from the groups of friends because the hang out with my ex, and that my twin friends think that I don't wanna be their friends anymore because they are still friends with my ex. I can't tell you what it did to me to think that my friends would think that I'm like that, heartbreaking isn't quite strong enough.
According to the twins, when it's just the 3 of them hanging out, John has a totally different opinion on the subject, a complete 180 actually. My twin friends know that I don't have any intentions in the world of not being friends with them, and they know that I'll handle the situation the way that I feel is right and they support me and care about me no matter what. What is more infuriating is that according to the twins, John was hanging out with them all day long on Monday...and when we (my girlfriend and myself) talked to him and asked if he wanted to go over to the twin's house, he said that he didn't know if he was invited because they told him that they were busy all day.
I do not want to be manipulated and lied to. I do not want to get back with my ex, and a true friend would know that...so I'm find that everyone (with the exception of John) knows that I'm doing the best that I can. I need to heal not to be pokes, prodded, and lied too! It's really the lies that are getting to me more and more....how can you call yourself someone's friend when you are a constant liar.
I'm not even going to touch on the other issues I'm having with John this break, that's for another post for another day.