For the event, my partner and I decided it appropriate to roleplay it out, figuring it would be a bit more fun for us to enjoy the romantic little scene together, even if our characters aren't quite together... yet.
Blue is AnnoyedClaude, Purple is KitTeaKat
Levels: 3400 [17 levels] + over 2000 bonus [5 levels] = 22 levels
Coins: 850 + 100 bonus = 950 coins
Rough and Eric's pokemon gain +11 levels and 475 coins each!