きちゃった

ended up coming

→ 来る
come + ちゃっ Completive (often regretful or accidental) + Past tense
auxiliary · past Rare #31,229
ended up coming A casual contraction of 来てしまった, often suggesting an unintended or completed action.
JA: 気づいたら彼の家にきちゃった。
EN: Before I knew it, I had ended up at his house.
Conjugation of 来る

ちょっと文子さんちょいと変なもの持ってきちゃったのよ

Fumiko, I went and brought something a little strange.

— 東京物語 (1953)

涙が出てきちゃった

I couldn't help but start crying.

— ハウルの動く城 (2004)

急に体重が増えてきちゃったんだよ

I've suddenly started gaining weight.

持ってきちゃった

I ended up bringing it.

— तुम्बाड (2018)

ちょっと酔っ払ってきちゃった

I'm starting to get a little drunk.

彼ねオフィスにスマホ忘れてきちゃった

He accidentally left his smartphone at the office.