Help pls

I need help find a manga. It was a yaoi and the seme had blond hair and the uke had black hair. The seme would always take care of the uke cause he always forgets to sleep and eat. Then a girl told the seme that the uke was felt up in the train. So the seme went to ask him and realized he was attacked again by a professor. I think they're in university. Help pls.