This game is short but really nice! I only wish we could have seen more of the other characters, I saw your reply to another comment and agree that making routes for all four of the guys would take a LOT of time!(I'm also excited that you're thinking of making another game! take your time! there's no rush on art babyyyy)
I encountered a bug by the way, Ashton's blush is crooked and stays until the screen blacks out (even when changing character poses/closeness) in the garden, this occurs after talking about red flowers. (My route was staying silent as possible in the coffee shop and saying 'its boring...' in the garden. hope this helps!)
I also noticed that the game files also contain assets from 'Gentille Alouette' and what I assume to be assets from another project, they are located in:
(drive):\Picture Perfect Boyfriend\WWW\img\(all folders I think, also \characters has a 'Gentille Alouette' sprite )