Confused About My Feelings

Still not over 2019 Spring Break in Cabo. I am a senior at Arizona State this fall, online, at home until I can go to campus. I met a guy in Cabo from the University of Michigan. Things went down the loosing your self respect road and I had sex with him and another girl. I regret having sex with him, I insisted on a condom but he took it off. I got an abortion, never told him about it, went on with my life, keeping in touch with Ellen who was the girl that night.

She is pretty level headed, held my hand during the abortion thing, and is now my best friend. She is asking me to transfer to her school. I only had sex with her that one time, my only experience like that. She claims to be bi, but says for me she will stay far away from any guy. I don't want to toy with her, I just don't know if one drunk night is a commitment.

Am I, or am I am not?