Orchid questions

Orchid questions

Hi, all, I'm a budding gardener (ha) who recently received a Phalaenopsis as a 30th birthday gift from a dear friend. It was fine when it came out of the shipping box (urgently shipped, 24 hours I think). It even flowered for a while. Although it didn't grow any new flowers, the ones it had when it came out of the box stayed on just fine in its current location until this week. In all, they lasted from my birthday, April 12, until now, the last flower dropping off this week, so that's about two months. However, the leaves at the base of the plant keep turning yellow and dying. Although he had five leaves when he came to me (see below), he is down to two big leaves now. I hope things haven't progressed too far to save him. The instructions I received with the plant lead me to believe it is receiving probably too much light and this is the leaves "burning," so I have pulled down the shades all around the room--it's placed sort of in the corner of my living room, in what I think of as medium indirect light, which is precisely what it's supposed to get, so I'm not sure why they're burning.


Mister Phalaenopsis in better times


The view to the right of Mister Phalaenopsis


The view to the left of Mister Phalaenopsis


The view to the front of Mister Phalaenopsis
(couch has been moved since this picture to below mirror)

(1) Is that normal--a two month blooming period almost, or are the flowers supposed to stay on longer?
(2) Regarding the leaves turning yellow, why are they turning yellow if the plant is receiving the appropriate amount of light? Or am I wrong about the appropriate amount of light? (See picture of plant in better times in its current location in the living room--I've since pulled the shades around it down. Is that medium indirect light?)
(3) I'm also worried I'm over or underwatering. See the size of the pot above. I've been feeling beneath the moss at the base of the plant to check the moisture of the soil and watering about once a week, usually on Fridays with the rest of my plants, tepid water, about a coffee mug. Is that too much or too little? How much would you water an orchid of that size?

The instructions said when the last flowers drop off to cut off the stems halfway up, at an angle, between nodules, and hope for them to regrow and rebloom. I did that. But I'm still worried about the leaves at the base of the plant. Any recommendations? Thanks so much for your input! I am very much at a loss.
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