Anxiety, panic. What do i do?

Hi, from what you have written you are having mild Anxiety and Depressive symptoms as a result of the stress of the situation you mentioned. This could be categorized as Adjustment disorder with mild anxiety and depressed mood. You will require counseling for this . Currently you are having mixed emotions probably of guilt, anger that your friends tricked you, wondering whether the way you look at relationships is right or your friend's perception is. Also, the added upset-ness that you may be having because of the boy and his attitude and the way he handled the issue, ignoring you and then giving you hope by texting you. In counseling you will learn to have clarity about these issues and also that you are better off without such complications. Your self esteem needs to be improve and you can learn to have better coping strategies. Do consult a Psychiatrist who does counseling or a Psychologist with counseling experience. You can definitely come out of these feelings, All the Best!