YOU SAID:
I've decided to go and eat lunch in the bathroom because why not
INTO JAPANESE
トイレに行ってランチを食べることにしたの
BACK INTO ENGLISH
I went to the toilet and decided to eat lunch.
INTO JAPANESE
私はトイレに行き、昼食を食べることにしました。
BACK INTO ENGLISH
I went to the toilet and decided to eat lunch.
Come on, you can do better than that.