camille1585, thank you for the hope you give me!
no, i havent changed the places of both the plants. other ppl told me too that a cold draft might have caused the blast. idk if this is of importance, but the stems were old ones, from the last year. last year it bloomed and after the blooms withered and fell off, the stems did not dry, so i did not remove them.
anyways, there is a new stem growing now, i hope everything will be ok with it. and i really hope that the blackened stem will be replaced by a new one, as you told me!
i wanna say one more thing. i discovered this forum when my orchid problems began this winter about two weeks ago. and i wanna say to everyone who answered my help-cry, and to everyone else here that you ppl are cool! thank you very much! you are cool, lol! ppl who love flowers are cool