What am I doing wrong?

[amk28]

About two years ago I purchased an orchid. Im not sure of the type, it was just the regular grocery store one, with big beautiful flowers.
I was able to keep everything looking great for about 6 months. The flowers were still there and the plant looked healthy. After 6 months the flowers fell off (which I had read is normal).
I moved the plant to a bathroom with a window, so it could be in a moist environment. A few months later, some new flowers started to come out! I was THRILLEDd because I have never gotten an orchid to live this long or even start to grow new flowers. I left it alone, keeping up the regular watering/care routine.
Sadly, a few days later, right before the flowers looked like they were going to bloom, they wilted and fell off
Since then, nothing has happened. The plant continues to look 'stagnant'; no new growth but not dead. This morning I went to check on it and noticed that the centre is starting to look brown... I touched the two top big green healthy looking leaves and they fell off!!!
The centre almost looks like its rotting... the roots are dry right now and nothing is different. Does anyone know whats going on? I really want this plant to live and eventually sprout out some new flowers .
My hubby has an ongoing joke that I can't come near orchids because when they sense me, they wilt over and die lol
Any help or advice is greatly appreciated
(PS Ive tried to include a pic.. im new, so im not sure if I did it right)