Phal flowers wilting

[winggy123]

Hi Everyone. I am new to the forum and this is my first post. I have a question about my phal. I woke up this morning and found that the flowers are starting to wilt. It is those typical phal that you get from Walmart, so I heard from people that the flowers can last for 6 months. The flowers have been blooming for 2 and half months now, so is that too early to wilt? This is actually the first time that I got it to rebloom, so I have no idea how long the flowers lasted the last time it bloomed. I have roughly 10 more buds waiting to bloom, another spike growing, one new leaf and 2 new roots growing from the base, so is it possible that all these are taking up too much nutrients, so the flowers are wilting prematurely or could I be doing something wrong?

Thank you for your advice