im going through this situation right now actually. i dated a close friend, but he disappointed me and hurt me in such ways that i ended it for both of us. now he is dating my best friend whom asked me for permission way before she even found out that he liked her, she wanted to know if i was okay with her liking him. i said yes. but then after, i found out that he liked her, and in order to be a good best friend, i told her that i approved when she asked me if she could date him if he ever asked her out. yes i approved because i didnt think that they would go out, but they ended up dating and i ended up hurting. right now, i dont know how to deal with looking at them holding hands and just acting all close in front of me. i have confronted her about this and she said she'll try her best to not flirt with him in front of me. she did... a little bit but what can she do when they both like each other so much? i cant leave them or anything because they are both really good friends to me... but i still cant get over the fact that they are dating. she told me that i was the closest friend she ever had in her life and shes the type of person who doesnt say things unless she means it. thats why, for all the things she has done for me, i am smiling and laughing with them together. but of course on the inside i am shrinking everytime. shes trying her best, so what can i say? to answer the question, this situation is the most difficult situation i have ever dealt with in my entire life. we're all 16 at the moment, so yes we are still "teenagers". i dont know, the sense of betrayal i felt was too great since she truly had me believe that she wouldnt let anything get in our friendship. but i guess even she cant overcome her love for a boy.