“Relationship” Question

I am wondering if I’m just being annoying and impatient, so I have this question for all you ladies. I have been going on dates with this man since August, we say I love you and we are intimate, but we’re not bf and gf yet. He is in college and is of course busy with school. He is worried that having a girlfriend will be too distracting and wants me to wait the 3 years it will take him to graduate before we can “be in a serious relationship”. Am I just being impatient or is that unrealistic?