never take girls too seriously! girls are completely different from guys and feed off emotions. a lot of people wont agree with this but girls trick you into love. not intentionally of course, but guys never fall in love first. if you do its because
1. you dont have enough girls to choose from
2. you dont have enough girls to choose from
alright enough of "i hate girls misogyny

"
do you really think you can trust her? if not, why are you with her? this is the problem i made, you feel forced into a relationship because you are afraid of other guys getting at her.
look at it this way. if you have 6 girls you're fucking, would you care if she did other guys? HELL NO!
I might be wrong? she could have the best personality in the world. But, girls like that are hard to find. very hard. maybe too hard without years of pick up.
Girls want fun. I wanted this girl all to myself, so i made it official. VERY BAD CHOICE BY ME! first of all, if you don't trust her before, you still won't trust her after. thats what killed my relationship. Ultimately it is your decision. from that bad relationship i learnt so damn much about myself, it was worth it (after 2 months of crying of course lol )
Also she annoyed the hell out of me. AKA not picking her for her personality, rather because of looks/ being pushed into it.
WHAT I SUGGEST
alright, if you still want the girl you gotta make it official. if she doesnt want it then shes fucking a lot of guys.
What I would do is stop talking to her completely. no talking for weeks. this will help you clean your mind.
If this seems hard to do you can pick up hobbies, sports, build your social circle, ANYTHING to keep your mind off her! This will make you realise what you want.
Now you have to pick if you want her or not.
If you still want her, start talking to LOTS of girls. you get into a thing with even 2-3 other girls and then go back to her, you wont feel as bad. she won't have any power over you, and you can turn back into the alpha and emotionally strong guy you were. NO GIRLS want any clingy guy, which is what you're heading to.
Basically you gotta get other girls too. You are young. You have the world at your feet and you don't need anyone. Even if you get into a relationship with her you gotta talk to other girls alot. Don't fuck them of course, but you need girls in your life.
This is all my opinion, maybe our brains work differently and it wont work. I do suggest you give it a try.
Thank you for reading all this, Hit me a reply as to what you think about my advice! Hopefully you don't think i'm too crazy hahah.
Thanks man, talk soon!