I have been sleeping with a married man and fell in love with him. What do I do?

Anonymous
please, spare me any judgmental comments. I know what I did was wrong and I am completely aware of it.

I was 17, freshman and stupid and he was my psychoanalysis teacher. Like most of the girls, I had crazy fantasies about him. He was in his late thirties and was very sexy and funny and not boring at all and all university students adored him. He was very communicative and always listening and offered help to all of us. I had just moved from morocco to the usa for studies and I really felt lost back then. We chatted sometimes and he was curious about my origins and culture etc. That was all at the beginning. We had coffe twice then a drink one night and he told me he was very appealed by my exotic features and how genuinely I talked and how outgoing and open minded I was. He told me that if he hadn't been married, he would have wanted me to be his.

I was very flattered by his words, of course the fact that he was married shook me. But I had a big crush on him and his tipsy words really pleased me.

we kept hanging out (not just me and him, he hangs out with many of his students) like nothing happened, until this one day when he drove me home after school and I invited him in. We had a moment and I couldn't fight it, I really tried but couldn't fight the temptation. We had sex and it was my very first time. It happened so many times again later until it became frequent. Now he spends more time with me than with his wife, more nights with me than with her.

I fell in love with him in the process, I couldn't help myself. I really love him. I know he is married but I want him to be mine so bad. Whenever he goes to her I just cry the whole night although I knew it from the beginning and still chose it. I want him to stay with me, and I want to take care of him because she doesn't.

I really don't know what to do, please help me
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+1 y
Well, thanks to everyone who tried to actually give me useful advice, you were so many to reply I couldn't thank each one of you individually.
Just to make one thing clear, I am almost 21 right now. I talked in the past tense, of how we met.
As most of you advised, I decided to just leave him but I had to talk to his wife before I felt like she deserves to know the truth.
I knocked on her door and her shocked face as she opened made me feel that she recognized me
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+1 y
I still introduced myself and told her we had to talk about something really important that's been bothering me. She immediately understood and said "there's nothing new we can talk about. Do you think I don't know who you are?"
I felt very embarrassed and couldn't add anything but lots of apologies and promises of never seeing him again. Then she said that I have nothing to be sorry for, that she knew and was fine with me being with him for last couple years for reasons that
I have been sleeping with a married man and fell in love with him. What do I do?
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