purple flower spike?

[pacomartini]

last mother's day i purchased a seemingly healthy phal with purple flowers and tons of about to bloom bulbs. i have had a little success with orchids and wanted to add a new one to the few i already had, however, it was b4 i knew to check out the roots. well, the bulbs i thought were just about ready to bloom didn't. the leaves sorta turned limp and then turned purple. this is the most confounded phal i've ever seen. it's the only one that needs baby-ing. it gets regular feeding and i applied a root stimulator and it is rooting..but the leave don't look great but they are greener and i thought it's getting better. then suddenly it started shooting up a purple/maroon flower spike coming from a srange place in the plant body rather from between the leaves as normal. my other phals are all apple green in color (the leaves) with normal looking apple grren flower spike growing or about to. what is the purple caused by and is this plant telling me it's almost "over"?