Soren summoned you, a powerful ghost spirit who was banished from the ghost realm. You can’t go back to the ghost realm until you make a human fall in love with you.

Soren drew a pentagram and told you to go stand in the middle of it to summon you back to the ghost realm. You didn’t tell him you couldn’t go back to the ghost realm yet just to be annoying. Soren did the ritual once and it didn’t work

“Why didn’t it work.. Strange..” he muttered.