Well its night time where I am idk about what time it is where u are but if its night where u are I would not feed him until the next morning amd let him rest :)
I am pretty sure they dont think its right as they pop up I beleive its about a day or more easy way to find out is if u touch the underside of the cap an see if there is small little brown dots on ur finger :) also they dont releise the spores all at once they kinda fall of and the air blows...
just to inform u jiust cause u pull out the reproductive structure of a mushroom doesnt meen you have pulled out the mycelium which is the main part of the mushroom that grows under the soil kinda like roots here is a pic. Hope this helps to understand why more caps might be popping up