"It's bad, looks like I have to go back there. Surely he will spread the news that will damage my reputation, but..."
"I promised and shouldn't leave you, I'm sorry for that one thing. I love you. But, I don't want them to know that if I have feelings for you, Mike, because this will be very dangerous, you will too. become the next target of obstruction and I won't let that happen to you. Sorry for all the promises I broke, but now I have to go back."
"I have to get out of here, I'm sorry about having to leave you again. I'll be back at midnight or tomorrow."
…
With anger starting to overwhelm her, Bela has now returned to her usual yoga practice. Yes, that's where the entrance to her world is.
She can use an ordinary mirror, but later Lucifer doesn't know that she has returned to the demon world according to a predetermined schedule.