My Ex-Boyfriend Tricked Me into Sleeping With Him, How do I take Revenge?

I have a man friend whom I loved very much before he hurt me. He is very proud and arrogant and always, demands a return of favour and for this reason we broke up and went our separate ways.

After four months he came back to me saying that he is sorry for everything that happened and I accepted his apologies because I still love him. A week after that he slept with me at his place and there after gave me some money for transport back to my place.

To my Utmost devastation, before I got to my house this man sent me a text message that he deliberately lured me back to have his way with me, and that he was no longer interested in our relationship and that he does not love me anymore because he already has somebody he loves.

I felt so hurt and humiliated to the extent that I feel I must revenge and get back at him one way or the other. I need advice on what best to do to him so that he would not think I am a fool. I am 26 years old.