My orchid is wilting! Am i killing it?

I recently got an orchid and all of it's flowers are wilting. The night i got it (i got two orchids) i cross pollinated them, i placed a pollinia from each flower onto the stamen of the opposite flower. ONLY the petals that were pollinated are wilting. is this what happens when the pollen reaches the "ovaries" of the orchid? or am i caring for it incorrectly? it is a phalaenopsis by the way. someone help.