と結婚してるの

married to

→ と
phrase Rare #20,607
married to と marks the person someone is married to. 結婚してる is the conversational form of 結婚している, meaning “is married.” The final の makes this a casual question, often expressing curiosity or surprise.
JA: 彼は誰と結婚してるの?
EN: Who is he married to?

トムと結婚してるの

Are you married to Tom?

トムマジでメアリーと結婚してるの

Is Tom really married to Mary?

トムメアリーと結婚してるの

Is Tom married to Mary?

トムアメリカ人ロシア人マリヤと結婚してるの

Tom is American, and he’s married to a Russian woman named Maria.