What are examples that shows that teenager dating violence really exists?

I am writing an essay on teen dating abuse.In my essay I need to have facts and examples that show the problem exists and what the impact it could give in a relationship.

Dating Tips for Guys That Really Work

There are many dating tips for men on the internet. Some advice is better than others and you have to find and try many things before you find something that suits you. If you keep going and do not give up, you will be taking women out on the town in no time.
You have to [...]