This Is A Job For Chocolate

Sunday I drove my daughter to my mom's house where she lives while she goes to college. I spent the night so that I could take my mom to the hospital for an out-patient procedure that ended up taking a wee bit longer than expected.
It was supposed to take half an hour (the nurse's estimate) to an hour (my mom's estimate). After two and a half hours a nurse came out to talk to me in case I might (might?) be worried. It seems that their first plan of action had not gone well and they had switched to something else. She wasn't sure how much longer the new procedure would take.
I don't know either, but the two procedures together took a little over four hours.
The doctor said that he thought my mom would end up spending the night in the hospital because of the pain, but she wanted to go home. I don't think she would have been in less pain at the hospital and this way she got to sleep in her own bed, and eat the food she likes.
Needless to say, this situation called for chocolate. This is the recipe my mom gave me to try for her while she was mending.

Fudge Buttons
12 oz. chocolate kisses, unwrapped
1 7.5 oz jar marshmallow fluff
2 1/2 cups sugar
1 5 oz. can evaporated milk
4 tablespoons butter
Pecan halves

In a medium saucepan, over medium heat, heat the sugar, milk and butter to boiling.
Reduce heat to medium low and continue to cook for 8 minutes, stirring occasionally.
Meanwhile, put kisses and marshmallow fluff in large, heat-proof bowl.
Pour hot sugar mixture over the kisses and marshmallow fluff. Stir until kisses are melted and everything is blended.
Drop by rounded teaspoonfuls onto waxed paper and push a pecan half into the top before it cools. Allow to cool thoroughly.
These can be stored in an air-tight container for up to one week or in the freezer for up to 3 months.

I never understand the "can be stored . . . for up to one week" stuff. Is this in case chocolate-hating aliens want to make some to have ready for their human visitors? Why would they still be there a week later? I don't get it.