しね

and, you know

→ し
phrase Uncommon #12,505
and, you know At the end of a sentence, し gives a reason or adds another point, while ね invites the listener to agree or acknowledge it.
JA: 今日は休みだしね。
EN: And today is a day off, you know.

もう結構いろいろやったしね

I've already done quite a lot, after all.

— Cosmic Princess Kaguya! (2026)

ケイティ・マルカムが死んじゃったしね

Katie Malcolm died, after all.

— ミスティック・リバー (2003)

どうせ保険で取り戻せるしね…

We can always get it back through insurance anyway…

— ファイト・クラブ (1999)

金にもなるしね

It can make money too, you know.

— es[エス] (2001)

今日は疲れてるしね。

I'm tired today, after all.

方々見物もしたし熱海にも行ったしね

We did some sightseeing in various places, and went to Atami too.

— 東京物語 (1953)

それに、みんなに仲間もできるしね。

And everyone gets to make friends, too.

近所隣の噂ってこともありましたしね

There was also the matter of the neighbors gossiping about it.

— High and Low (1963)

午前か午後かにもうるさいしね

They’re picky about whether it’s morning or afternoon, too.

— ビッグ・シック ぼくたちの大いなる目ざめ (2017)

幸い、私には話せる相手がいるしね。

Luckily, I have someone I can talk to.

ツァオおばさんが来てくれませんしね

Aunt Cao won’t come for us either, you know.

— 紅夢 (1991)