While Lucifer was out there looking for ways to defeat his enemies, Marilyn wasn't planning on staying idle and obey his instructions on not seeing Jason. That was an impossible task to do considering the situation between the both of them.
It's not a big deal to Lucifer that she does, but she took it very seriously. Like the event still lives rent free in her head, and because of him she was forced to get closer to Erin, no, Seth which has caused her death.
Now that she has a second chance at life, she decided to give her best in making sure that she lives a fulfilled life, one that has nothing to do with Lucifer treating her like some kid and keeping her hostage from her real family.
So, when she sat up from the bed with the intent to move, the door was opened and in walked Aurora, Lucifer's daughter, she's the only reasonable person who looked normal, until you get to really understand that she was truly crazy and ruined like the rest.
