No,and sadly that's what some people do.
I guess most of us have been betrayed at one point or another.
We all have to learn to live with it and move on.

It so devastating though I'm hurting over more than one thing

That's why I suggested counciling so that you can talk about everything that's hurting you.

If I went and spoke about everything how would it help?

Just the fact that you sit down and talk with a professional helps.
You'd be able to tell them how you feel and they would advice you how to find coping mechanisms.

Hey 4 months is not enough time. Stay NC and you will make it. I know someone that is in month 7 and having a very difficult time. It happens. Its okay to feel down after a loss. You will get back on your feet soon! Hang in there.

It feels like a long time like I shouldn't be like this anymore and when sh has moved on so quickly how can I think anythingbut what's wrong with me

But there isn't anything wrong with you-you are you-and we are all different.
There are no absolutes.
She also went to uni and started a whole new life.

That's probably one of the reasons she could move on.

But how can I mean nothing to her aftr the time we had together, uni wasn't supposed to be a problem cause we talked about it before

Uni is a whole different world and there's no way of knowing what it's going to be like until you actually get there.

What you need to do now is accept that it's over-yes,it hurts,but your life is still there-your job,your friends and family,your hobbies etc.

But I'm a nice guy I didn'y do anything to her to deserve all this pain, plus all the things I've got are getting affected by what has happened and how I feel

Im sure you are a nice bloke,but when people break up with us we need to not stay stuck in the past but move on.

I know I need to move on but I can't seem to do it, I've tried everything but am going in circles because when ithink I'm OK the next minute I'm a mess, I'm scared to be happy because I know I'm going to expect summat to hurt my when I am because I think about her all the time

Allow yourself to be happy.
Don't worry about the next hour or day.
Got to go work talk later.

If I expect myself to be upset then when do get upset its not a surprise andi think another day of being sad and prbably wakin up again tomor with her on my mind

Try to wake up tomorrow with the thought that you deserve better than being sad and missing the past.

Look forward to a day that could and should be interesting.

A day at work hardly can be classed as interesting, I know I deserve better that this feeling of sadness I get constantly but ornings are probablt the hardest with getting out of bed an all that

Get out of bed-have a shower-a cup of coffee/tea-breakfast and that's your day started.
It works.
Bedtime here.
Good night.

Yeah the mornings can be rough. This is what you must do:
As soon as you get up, take a good long shower and brush your teeth with the radio blasting if possible. This should help your mornings. But it must be done as soon as you wake up. Eat some breakfast and watch TV and then go out and workout or do something.

OK I will try get out of bed as soon as I wake you and shower TV and breakfast etc but it will be an hour or so before I set off to work so can't go to gym or anything