For all of my bettas I would take a week or two to think of a name for them.. it's probably just coincidence, but you could try waiting a little while to name him, maybe?
♂ Nettlestung ♥ Pastel/Cellophane HM [RIP]
♂ Stormrunner ♥ White Marble dtVT [RIP]
♀ Willowisp ♥ Cellophane Marble VT [RIP]
♂ Skyshatter ♥ Butterfly Halfmoon [RIP]
♂ Starchaser ♥ King Plakat [RIP]
♂ Heartseeker ♥ Red/white DeT