lets call the guy (bob) and my bestfriend (kay) Not there real names,

ive liked bob for a while and one day i decided i'd tell her i like him cause we said 'no secrets' and she said thats fine he is pretty ugly anyway, i felt a bit hurt inside but i didnt show it i just made a grunting noise, anyway back to the point it all started at the start of this year i turned up at one of my new classes and i realised that kay and bob where both in it i looked at her and she was looking at me a bit funny me and kay sat together and he sat next to kay!! i was a little bit hurt she has now started liking him and he likes her he still laughs at my fails and jokes but he has asked her around for tea at his house and to go up to street with him you can say i am getting really jealous cause I am i cant doubt that i just cant believe it, she is been inboxing all these guys on facebook too like playing them!! i feel so sorry for them cause theey are getting played, well back to the point they have been hanging out at morning tea and lunch and ive been 3rd weeling and i hate it! we started to hang around with my other friends again and i really liked that cause i actually had someone to talk to, after i found she only did that to get rid of me i has been hurting inside and i hate that she took the guy that i liked i mean i didnt own him but i saw him first if you know what i mean lol, anyways we have an excursion coming up with that class and he said to her 'who are you sitting with on the bus' and she said 'you' straight away i am feeling really bad inside and sometimes i cry like I have NO guys that talk to me and i think its cause im bad looking, or fat but she says im perfect i have a good personality but thats all i got you know :( anyway on this excursion guess who is 3rd weeling again fucking me! shes keeps trying to make me sit with this other guy but i dont like him he is weird you know? all he talks about is politics and its boring, anyways i told her at lunch that i wanted to sit with her on the bus and she said NO! im sitting with bob thats that, and shes been snobbing me alot if that makes sense, like shes not talking to me and not hanging around with me and its eating me up inside we have been so called bestfriends for around 2 or 3 years now and shes turning into a real bitch i have tried talking to her but she gettings really angry and yells at me, any thing i could do other then talking to her? thanks :(