Hello there Zoey:)
First of all I would like to say that you are going through something that is VERY natural to go through when relationships dont work out so stop being so hard on yourself and saying that you are acting like a kid or obsessing over a guy. It is only natural to worry that there is something wrong with you and that is why he doesnt want you , and trust me when you gave up on him he probably felt the same way and wonders why you dont want him anymore. Sometimes relationships just don’t work out and some people just aren’t meant to be with eachother , imagine if some amazing man who was made for you is waiting out there somewhere in the world for you while you are just “settling” for someone else, you would loose your chance on something beautiful thats why some relationships work out and others don’t , its the ones that were meant to last that do! There is NOTHING at all “wrong” with you , and you probably did nothing to upset him or turn him off , but maybe he could be going through something and not want a relationship anymore, maybe he has issues with himself and doesn’t want to start anything until he fixes himself, or maybe he decided it wouldn’t work out if he was far away from you,there are endless possibilities which are more likely true other than something being wrong with you. As for thinking about him , slowly but surely you will start to forget him and Eventually he will be nothing but some funny memory you have of some guy you used to know, just try to keep your mind busy with people that DO make the time in their day to spend time with you and try to keep your confidence high and fall in love with yourself. Remember that before you can love or start a healthy relationship with anyone you must first love yourself and when somebody asks you out you should feel as though it was only natural for someone to want to hang out with someone as amazing and fun as you are;) And if something doesn’t work out always remember that there are beautiful things and people waiting in the world for you to meet.
Hope I could help in someway 🙂
Alapal