Jessica, I agree with both Daisy and Tara, that plant needs a lot more water than a cup every week. I'd be giving it a gallon every second day, myself. These are huge plants here in Florida - some of mine in my garden are 20ft. tall. They get drenched by the heavy rains in summer, sometimes a couple of inches a day or more. They can take any amount of water.
After you soak that pot in a bucket of water (warm water) and it feels heavy, plus the leaves have perked up again, I'd recommend you go shopping for a MUCH bigger pot. Re-pot your baby with good quality potting soil, and get a big saucer it can sit in - the nurseries and big box stores have clear plastic ones that are inexpensive.
In hot weather you can water that plant every day or every second day. Once the nights get cooler in October or so, you can ease back on water, but it doesn't want to dry right out ever. It also needs fertilizer in the spring, summer and fall when it's growing and it can be out near the edge of your patio where it will get some sun, too. A pelleted, timed release fertilizer like Osmocote will be good - it will also last a couple of months each time you put it on.
It may be your "dream plant" but pretty soon it will get much too big to keep in a pot, so plan ahead, and maybe find someone with a garden where you can plant it in the ground in a couple of years. These Birds are really not meant to be potted plants unless you have a 3-story mansion with a conservatory. Or a shopping mall . . .
