I just bought an Easter cactus for an indoor plant on 5/14/16 and my flowers are wilting, they were bloom when I bought them and now they closed up and look like they are dying.. I've only watered it twice since I got the plant. Also it's on a table next to a window but it doesn't get direct sun. It's also in the same pot as my two kalanchoe and my ghost plant. I got told they all can be together. I only water when the soil is very dry.. I don't know what's wrong with them. Please help there is two pictures... One the day I bough them and one from today