Annoyed Lilith

In the future, Lith was going to encounter Lucifer in the Demon Continent. One thing would lead to another and they would be in the same situation as the present.

But in the current situation, Lith ended up encountering Lucifer much earlier. Why that happened, Lilith had no idea yet. She had to see the things that happened before these events took place to understand better.

In any case, this encounter was going to happen anyhow.

Lilith could intervene but she wasn't going to. Despite knowing what the future holds, Lilith would only act as a spectator and do some slight modifications to things to have some fun.

Her one such modification, making Mayzin go on a date with Lith, was what caused the current situation to occur.

Had Lilith not done that, Mayzin wouldn't have been as obsessed with Lith.

Had she not been obsessed and stalking him, Lucifer wouldn't have known about Lith as well and the current situation would never happen.