Me and my ex are both 19, we met online and then real life, where most of the feelings developed, shortly after that, we took each other's virginity. After about ~4 months of daily texting, meeting with each other, (I go to a university, she works as a hair stylist) she simply told me, that she doesn't love me anymore. I was devastated, went and cried to her, without an ounce of reaction on her face. It's been a week now, I've tried talking to her 3 different times now with no good results. I gave up on finding anything salvageable, but I'd be glad to read some advice on here.
And thats why it broke apart, you gave her what she wanted and then she left. You killed your ability to pair bond with a potential mate. Move on, and dont make the same mistake again.