Hello Mapexx93!
I am pretty sure you will find many other love interests in your lifetime!! At 19, i thought i knew true love, and was devastated when it ended, but that feeling passes!!
Get busy with your life. isolating is only making it worse. Get a job, go to school, and meet people. Find a hobby. Get counseling.
When someone leaves a relationship, it's their free choice, so knocking teeth out may sound like a good idea, but in reality, it's not!! The girl is probably just not mature enough to know what she wants yet. DON'T TAKE THINGS PERSONALLY. It's usually not about you, most people are selfish and it's all about them.
As long as you are a good guy who treats people the way you want to be treated, and do no harm to others, i believe you will meet someone. Give it time, and remember beauty is only skin deep. There are many young, smart, caring ladies out there!
sans