Possible Clues:

• See any number going to cathedral location wanting company?
• See 23 Across
• Like many dating site clients
• Out of date?
• Sad Lyle keeps on being forsaken
• Desolate portrait painter holds on
• Friendless individual living initially in outskirts of Londonderry
• Needing companionship
• One less l___girl ( Bieber hit )
• There's nothing in Nelly to make her so solitary