YOU SAID:

the other day i wanted to eat ice cream so i went to the store and then i crashed someone else's party

INTO JAPANESE

先日、アイスクリームが食べたくて店に行ったら、他の人のパーティーに参加してしまいました

BACK INTO ENGLISH

The other day, when I went to the store to eat ice cream, I ended up joining someone else's party.

INTO JAPANESE

先日、アイスを食べに店に行ったら、他の人のパーティーに参加することになってしまいました。

BACK INTO ENGLISH

The other day, when I went to the store to eat ice cream, I ended up joining someone else's party.