to go off with
[phrase form: go]
01
と一緒に行く, と駆け落ちする
to leave one's spouse or partner to pursue a romantic relationship with someone else
例
She decided to go off with her co-worker, leaving her husband heartbroken.
彼女は同僚と駆け落ちすることを決め、夫を傷心のまま残した。
02
一緒に行ってしまう, 持ち去る
to leave a place, often suddenly or without permission, taking someone or something with one
例
The suspect went off with the evidence before the police arrived.
容疑者は警察が到着する前に証拠を持ち去った。
