Can people have like party’s there

It's a small store with very little seating, so I would not think so. It's a fun place for a group to go, but there's no place for a party.

Not really sure if they have a back room for that but it's not much seating there

There is only seating for about 6 people and not much space except to browse, select, and purchase candy/ice cream.

No you cannot

I'm not sure but you ca n call them and they will tell you if they do or not