ことになってるの

has it turned into a … situation?

→ こと
phrase Uncommon #16,883
has it turned into a … situation? In this question pattern, ことになってる asks about the situation or state of affairs. In other contexts, ことになってる can mean “is supposed to” or “has been decided.”
JA: 大変なことになってるの?
EN: Has something serious happened?

まずいことになってるの?

Is something wrong?

厄介なことになってるの?

Are you in trouble?

やばいことになってるの?

Is it getting serious?

トムは今夜、友達の家に泊まることになってるのよ。

Tom is staying at his friend's house tonight.

いつ船が出ることになってるの?

When is the ship scheduled to leave?

ただ、持参金をお互いの家族に返すことになってるの。

It's just that we're supposed to return the dowry to each other's families.