Mega, you have oneitis. You need sex with a new girl asap. It's the only way to take your mind off it, or youll dwell in sadness for months. Been there.
On the bright side, once you meet a good girl, you'll be amazed how fast you can not care about someone you used to love. Monogamy is dumb these days imo, once the challenge is over girls get bored. So never love them. That's part of the game, people think its harsh but it's a sexual strategy for men.
I'm not interested in just having sex with someone though. Nothing beats the feeling of being in love, & because of that heartbreak feels like a total nightmare. My ex meant everything to me, because she made me feel like I had a purpose.
I'm sure there's someone else out there for me, but my illness keeps me a shut-in so meeting people is hard, & I'm sure it'd also turn off a lot of girls once they found out about it (plus it's apparently obvious even just by looking at me). My ex was perfect for me because she had similar issues & knew what I was going through, so she understood. We were each other's support system.
You weren't perfect for each other, it was good while she didn't think she could do better. She got sick of the emotional issues and left. Just because she says she accepts that stuff doesn't mean she truly does.
You've been lied to by society. If you really want her back....I can help. But it will be hard for you. That should be motivation. For now, cease contact immediately if you havent.