Hey there @HeartbrokenHeart. I'm so sorry this has happened-it sounds like you miss him very much.
My advice would be don't text him, delete his number, delete him from social media etc...contacting him or being reminded of him will just make you feel bad. In the meantime you should go to your uni, make new friends, throw yourself into loads of activities - it is so hard when you want and miss him, but you need to enjoy your time and all the exciting opportunities uni brings. Take each day as it comes and make a conscious choice to make your life about you and not about him-create some fantastic new memories. You will feel better each and every day that you do this.
I know it's hard to hear, but things are better this way-long distance relationships are hard and involve quite a bit of planning and sacrifices...both people need to be committed if they are to work out, and it's clear that he isn't committed right now. It is not you, just circumstances, but unfortunately sometimes that is the way things are. If you two are meant to be, you will find each other again.
I was in your shoes 10 years ago-I absolutely adored my bf, we tried to make things work at uni but it didn't work out. I was absolutely heartbroken and missed out on loads of activities and fab nights out and doing really well on my course because I was pining for him...don't be me!!! Looking back, he was a nice lad but not the one for me as he made that choice to break up with me. Since then I've had a lovely life and met and married my husband whom I adore even more, things do improve and I wouldn't change anything now, looking back. Wishing you all the best.