As “NCIS” approaches Abby’s (Pauley Perrette) exit, fan theories are popping up about how the beloved character might be written out.

1 new possibility was floated in light of this week’s episode, as Gibbs (Mark Harmon) said that he’s a friend who’s in recovery to combat alcoholism. This led fans to wonder if this might have something to do with the character’s departure — and whether that friend could be Abby — given that alcoholism runs in her family.

“Taking bets that Abby is Gibbs friend in recovery,” wrote one fan. “Maybe this is how @PauleyP is leaving the series.”

“Were they hinting Abby is ‘a friend of Bill’?” another supporter tweeted, using the euphemism for a recovering alcoholic.

The series didn’t make it clear who Gibbs was referring to, and Abby had been offered a drink during an episode a couple of years back, if Gibbs knew she is recovering which makes a questionable move by Gibbs as one viewer pointed out.

Perrette announced earlier this month that she’s leaving “NCIS” at the end of Season 15. New series regular Maria Bello was introduced as Jack in the episode of last week.