[DE] My ex-roommate received a court summons at my apartment, am I under obligation to notify her?

This might make me sound like a little bit of a dick, but my roommate was a rude, mean, human garbage type person.

We are both on separate leases for separate bedrooms within the same apartment. We were randomly assigned roommates in a student housing type apartment complex. Roommate and I had a ton of issues, the biggest being her brother was living with us- I finally had enough and went to the leasing office and he was kicked out. Roommate left shortly after.

It turns out, however, that she never actually broke her lease/told the complex she was moving out. They've been sending her letters for months (she left in Oct) and today I got home and found a court summons for her hanging from my door.

The honest truth is I don't care (on a personal level) if she gets her notice/shows up for court. But I'm not sure if I have any legal obligation to notify being that I am still (technically?) her roommate/I live here.

Thanks for any advice.