Hi & welcome! I think it is getting too dry. A tiny pot like that probably dries much more quickly than a week. Fallen leaves rarely make new plants. Leaves that are knocked off while still healthy and firm can make new plants.
If the roots have rotted (overwatered,) the bottom of the stem would be dark and shriveled.
If it was mine, I would put it in a clay pot and water as often as the soil dries, as close as possible to a sunny window. Weak, stretched material does not propagate as successfully as perky, vigorous material. I would not try to cut the stem at this time.
