What do you think?

I think you break up with people for a reason and lingering on the past will do you what good? None.
Like you clearly said yourself, you need to move on, but going into a new relationship won't help you move on, accepting the past happened for the decisions you made will.
Wait until you feel ready and don't push yourself into anything; new people won't make you get over old ones.
Being a friend with your ex may reassure you about something or another, so I do think you should build a friendship with him.

^ Bang on!.. heh

No, I totally agree with him.
Moving into a relationship so quickly does not help you move on at all. That's what people call a rebound. Take your time, you don't need to rush into anything right now. It will also help you make better choices by taking a step back and looking at the situations at hand. Be patient, things will fall into place.

I totally agree with darian

By not telling him, you are hurting him more. If you don't want to be in the relationship you have to tell him, otherwise you are lying to him. No one likes to be dragged along. No one likes a fake relationship.

your gonna hurt this bloke if you dont tell him... yo have to tell him asap!!!!!!not fair to lead hi mon at all... well you shouldnt jump inot this relationship straight after tht other one... it jus gonna course more problems n hurt... which it clearly has...

if you loved tht other lad like you said u did then you HAVE to let yourself heal in time etc... tht is the onlt way youll move on is take each day as it comes n you will get over him... youll always think about him... ive bn with my bf 3 months now n my ex hurt me and i still think about him... he was my first love etc n i fell for him good and proper and i know wot your feeling etc

and my advice is take time out n first of all you have to tell tht lad and then take time out for yourself and spend time out with firends etc untill you hav emoved on!! youll constantly think about him for a long long time..

blokes find it easier to move on when break ups happen where girls cant move on as quickly.... and there is nothing wrong with being like that so take your time and spend fun n sad tiems with friends... also what helped me was when i were down over him i would ring a friend n tell them i need them and tht helps..

but u gotta tell tht lad you wanna be just friends n your sorry.. once your healed n your heart aint bruised no more then youll no its ok to get with someone else n u never no wot or who is around the corner..

take care