Today I go home party

Today, I went to a home party with a co-person.     What do you mean by "co-person"? A friend? A date? I don't really know what you mean by co-person.

It is unusual because I would not give the party very much often in japan.   "give the party" I think you mean "throw parties."
Going the street, cherry trees line up.     "There were cherry trees lined up the street."
It was very beautiful.
The home party was held at 1:30 afternoon.
We cheered up, drank beer, and ate many delicious foods.
I ate too much food.
I had a stomach ache.
but I enjoyed it at the time.
The home party ended at about 17:00.