Most Helpful Girl
Well if she's moving on , you really have no choice but to move on. And no it's not ridiculous , it's completely understandable. But first off stop being down on yourself. Stop asking yourself why? And what you did wrong or what you could've done? Because you will probably never know and you may not have even been the cause of it. She just may not have been ready for a serious relationship. Also all the time your sitting and thinking about these things , your thinking about her. So take one step to moving on and stopping. Delete all text messages , pictures , her phone number. Remove all things that remind you of her. Also , if you are doing this, stop listening to sad love songs. They don't help. But do allow yourself the time to cry here and there.. Just not all day. If you have to force yourself out of bed and listen to happy music because it actually does help improve your mood. But do all these things at a pace don't just burn all memories of her all of sudden. You'll end up missing her. Allow yourself the time but not so much time that your still stuck in your room depressed. I hope this made sense and helped. Goodluck , it does get better and you will move on.
Most Helpful Guy
See a psychologist. The are experts at human emotion and mental health.
Enrich your life with hobbies and interests. Join clubs at your uni to meet people. Surround yourself with people who make you want to be better.
As soon as you stop worrying about girls and focus on other things, the healing will happen (albeit slowly).