How can i get back at him??? HELP?

[Hadizat]

Right i like this guy,but everyday when we talk home(with his friends and my friends) there are these three girls and one clearly likes him,nut when ever they talk to him they look at me(trying to make me jealous,i think). He tells me they're annoying and he doesn't like them,he even offered to stop speaking to them. Well today he wasn't walking home with me,so i decided to ask them what there problem was,and i asked them how he acts with them,they said 'He's a player and makes you think you're the only girl he talks to'. All in all the girls were really nice and lovely to me,not how he made them out to me at all. I heared that he had a girlfriend so i asked him about it yesterday and he told me he didn't,i even gave him a change to tell me the full truth,today i got told he did and he's been with her for 3 weeks now,and got told she was really pretty and that it looks like it's going to be a long relationship. I feel used tbh,i don't like being lied to. What should i do??

If you want to answer me and tell me in private,drop me an inbox;
https://www.facebook.com/hadzat

[Kim]

Let's have a Spanish lesson: "El Dumpo". Get rid of him. He's misrepresenting the truth. He might have wanted to be seen with you for his image, but he never wanted something long term. Don't be arm candy for anyone.

[Gabriel Monzagi]

Facebook is: Gabriel Diarra