Today’s college students face potential dating abuse that didn’t exist a generation ago.

It’s okay to say no, to not be so quick to share passwords,” she said.

“If it feels bad, then it really is bad.” (For more information, visit the Love is Not Abuse web site.

Her ex-boyfriend, George Huguely, has been charged with first-degree murder.

Huguely, who also played lacrosse, had a reputation for partying hard and becoming violent.

“It’s hard to know what to look for,” said Jane Randel, senior vice president for corporate communications at Liz Claiborne Inc., which commissioned the survey.

In talking with teens and college students who have dealt with dating violence, Randel said, “they all knew something was wrong, but they didn’t know what to call it.” The company has formulated a free high school curriculum through its Love is Not Abuse initiative.Randel said several people have described it as “creepy.” But that’s the point.“It’s a matter of having kids understand that it’s okay to have things that are private...Without reading the instructions, I downloaded the app on my phone while waiting for an interview, logged my e-mail address and cellphone number, and started the simulation.In the next few minutes, my phone would not stop ringing.Casteen III urged students to learn from the tragedy.