Traducción:Ella todavía está en una relación con ese tipo de la universidad.
"To be with" someone very specifically means to be in a relationship in current American English. Especially when you say they are still with someone.
The other meaning is still used, but context will help you figure it out.
A: You saw Marie at the party?
B: Yeah, she was with some people from her old job.
A: Have you heard from Marie recently.
B: Yeah. She is still with that accountant. They moved in together last year.