Whatttt is going on?!?!? relationship huh? soooo confuseddddd?

i felt sick all nite so i didnt do anything. my ex girlfriend wont talk to me anymore even though were friends. like we talk she just is embared to tell me what shes doing when shes going to hang out with her new boy toy.I feel really drowsy and the room is like wavy... i dont remember taking anything but i stayed home tonite because i was already feeling sick adn nothing was going on. My ex and her best friend Kay (both of whom im friends with) act weird because her friend still talks like normal... sometimes i get the feeling kay has like a crush on me or soemthing but idk. she has a boyfriend but they are very strained. she was telling me about how someone ditched her tonite but she wouldnt tell me who did it. i think it was my ex gf and her boyfriend because kay hates my ex's new BF and so does the entire school.Hes really seductive and made my ex leave me. hes a douche. she still feels bad about it and cries that she left me, so i tihnk shes still into me. she threw up like 3 times when she had to call off our relationship and cried on the phone for like 4 hours. i also like another girl but dont know her really well enough. shes shy. Im really confused with situation and dont know what to do. Opinions please?