My boyfriend still hasent changed !!!?

I asked a qustion about a week and half ago about my bf breaking up wiv me then by the end of the day acting normal again !!! Ive talked 2 him about eveything. if there is anything worrying him ect.. he says there is nothing!!! But even his friends are coming 2 me at skl and asking me wot is up wiv him and i just dnt no. i feel sooo upset cause me an him have always been soo close and now we hardley see each other in the evenings only if were in the same lesson :( :( and i just need him 2 go to sum 1 he can trust and tell them wots up!! i also feel upset that he thinks he cant come and talk 2 me when there must be summing up!!