If you are using a version from a repack site (like those mentioned in your query), keep these standard community tips in mind:

To reach the state where you are "free to date others," you must complete the Deal With the Devil section, where your character learns of their connection to Death.

The search term you provided, "Love-Unbound-REPACKLAB-ROMSLAB-UNFITGIRL-GAMESP...", appears to refer to a specific adult visual novel or drama game titled (also associated with the title Rebel Duet in some guides). Game Overview Genre: Adult Visual Novel / Interactive Drama.