Idk wht to do anymore?

ok well yesterday i was crying at lunch cuz i heard my ex bf was saying mean stuff about me on fb and tht he and his current gf kissesd on there second day of going out ( i was mad cuz it was his first kiss and he always told me he wanted his first to b with me o and we went out 4 5weeks) ok so he and other people today were asking me y i was crying of course i nvr told them.. soo yeah..n and of course the guy of my dreams doesn't like me at all :(( and i do anything for him to love me the way i love him. also i didnt try out for the talent show aftr skol today since im loosing my voice and so now im going to tryout tomorow (singing btw) at the elemtary skol.. which means i have to b around little kids but i will have only one friend there. so questions: sud i go out for the talent show? should i tell the guy i love how i feel? and should i ignore all the guys and girls asking y i cried??