I'm pretty sure it's Celosia cristata, but whatever it is, it looks as if its been overwatered, that is, it looks droopy but not crispy. These plants like their roots to be constantly moist, but they do not like sitting in water, so if you've been watering twice a week and leaving water in the bottom of the pot, that would cause a problem. They like cool, airy conditions, and some sunlight is essential.
If the compost in the pot is sodden, and there is water in the outer pot, empty that out and stand the plant somewhere it can drain down completely. Then water when the surface of the compost feels just slightly dry to the touch, but not dry. Water well, and go back 30 minutes later and empty the outer pot, so that the plant is not standing in water. Should be fed weekly with a proprietary houseplant food whilst it is in flower.