<human>: Could you distill the essence of the text into 1-3 sentences?

I am 19 and a college student, living under my parents' roof; but I live on campus during the semesters and come back on weekends to visit.

My mother recently has really been cutting time with me seeing my boyfriend. Lately, due to her finding out something she didn't like, she's been ordering that he come to the house to visit and that, if we ever go out, I can never go to his house (basically the "it only takes you 1.5 hours to eat at a restaurant, so come home after that"argument).

I've been dating my boyfriend for a year and a half and I really just want to spend time with him, alone, at his house: something that I'd always done every Saturday. She gets angry if I ever tell her that I stopped by his house for a few minutes to greet his parents and asks me why I ever go over.

I'm 19, a legal adult. How the hell do I let my mom know that she can't ration my time with my boyfriend? That she can't tell me what to do with my boyfriend and how I spend time with him? It's seriously making my boyfriend and I angry. My mother and I have already had a lot of fruitless fights.
<bot>: My mom is restricting my time and place to see my boyfriend, and I'm legally of age. Need advice.