What should I do with my friends who are having dinner with the boy I like? ?

When I told two of my friends that I liked that boy, they made fun of me at first. But then I got pretty close with the boy. We were even chatting with him every day. I know that he likes me. And I told this to my friends. They were very surprised and said they thought it was just platonic love. The boy even told me that whichever university I go to, he will come with me. Then, without my knowledge, my friends became very friendly with that boy and went to dinner. I was so angry and upset that at first I couldn't say anything out of shock. And after that dinner the boy stopped talking to me. Later I had a fight with them but they found me guilty. What should I do now?

What should I do with my friends who are having dinner with the boy I like? ?
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