Should we still be friends, or just casual friends?

Here it goes...me and girl together 2 years, had tons of fights, her feelings changed a few months back and now mine have, we both even got with othe people once. Well i decided to break it off and she wants to be with me but i dont. I dont really see her in my future. I love her tho still, not like that tho. She loves me too and wants to be with me. Anyway we're at the same college and everything and she doesnt have many friends so i'm really the only one she talks to. the last two nights we've even slept together bc she wanted me. last night we didnt, but she just came to my dorm did her homework and slept here. Should this continue or should i say she needs to stay in her own room and stuff? Should we still stay close or not as close in contact. I always let her call me too by the way I don't just call her. She was talking about transferring next year too but is staying bc she wants to be here with me. I know there quite a few questions in here and if you could answer all of them I would appreciate it! Thank you so much!