I replanted it in the same pot with new soil, which includes plant food. Around a week after I did this, some of the leaves started turning yellow. Since I got this plant about 3 years ago, it came with flowered already grown. Since that first year, it has not flowered.
Why Are Peace Lily’s Leaves Turning Yellow
Certified GKH Gardening Expert
Yellowing leaves can be due to watering issues, to much or to little.
Make sure the plant is not water logged, it should dry out between watering.
Also using distilled water or leaving the water to sit out on the counter 48 hours before using will help.
Optimizing the plants growing conditions can help with re blooming, but sometimes it is difficult to get the Peace Lily to rebloom.
Here are some links with more information.