How do I forget the man that I loved so much and that cheated on me?

We were in the relationship for a year. I loved him so much, I wanted to do everything for him, I had so many dreams with him. But he cheated on me with his collegue and just confessed to me what they did. It was my first relationship, I'm a very sensitive person- introverted, friendless, socially awkward.

I feel a strong pain on my heart and I'm breaking down. I don't know how to cope up with it. I never thought he'd cheat on me.

Can you please advise me on how to forget him?

How do I forget the man that I loved so much and that cheated on me?
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