Alex and Richard also take part of the blame in the issue, by saying that they knew what Meredith was doing and they failed to stop her. The pair, along with Andrew, were all fired from the hospital.
Of course, the season ended on a huge cliffhanger, as Meredith ultimately confessed her actions to Dr. Bailey, and then we see her at the police station filing a report.
Are DeLuca and Meredith Grey still together?
Because DeLuca has been in jail, the two weren’t able to spend any quality time together in the season finale. Understandably, the two were more focused on the insurance fraud issue than dissecting their feelings for one another. With it looking like Meredith will take the fall for her insurance fraud issue, there’s another wrench in their romance.
Source : https://www.distractify.com/p/why-is-deluca-in-jail-greys-anatomy