Ive been dating a guy for 6 weeks and I have found out he is sleeping with someone else, we slept together on the 2 and date and I made it clear I couldn't sleep with him if he was sleeping with anyone else, it turns out he had lied to me along, he said its none of my business what he does as we are not official, I really like him but I don't want to share him with anyone, I since then told him by text that I didn't want to see him anymore, he is really Hurt by my text and I phoned him after and said I didn't mean to say that, I'm so confused I don't know what to do, I hate being in a situation like this and upset he won't make official with me, should I trust him and wait for his decision, I don't want to date anyone else either.

You slept with him.
You told him either before or after that that you expect him to not sleep with anyone else.
He either agreed and lied, or didn't say anything and you feel that was the same as lying.
You found out he's sleeping with other women.
He said that's none of your business.
You told him you didn't want to see him anymore. END OF STORY.
He has no right to be hurt. He can't make demands on you to keep up this relationship any more than you can make demands on him to sleep only with you.
HAVE NOTHING TO DO WITH HIM. Of course you meant what you said! Don't get all wishy washy over something like this. He is taking advantage of your confusion.
You need to show that you when you make decisions about what you want from relationships, you stand by them, and this is an important one.