いろいろあって

for various reasons

→ 色々
phrase Rare #43,170
for various reasons Often used vaguely to imply that a lot has happened or that circumstances are complicated, without explaining the details.
JA: いろいろあって、引っ越すことにした。
EN: For various reasons, I decided to move.

実はいろいろあって彼と一緒に住んでるの

The truth is, after everything that happened, I’m living with him.

— アバウト・タイム ~愛おしい時間について~ (2013)

ちょっといろいろあって

A few things came up.

— Cosmic Princess Kaguya! (2026)

若い頃にいろいろあってね

A lot happened when I was young.

— Departures (2008)

「二人はどうやって知り合ったの?」「いろいろあってね」

“How did you two meet?” “It’s a long story.”