I think he sees it as his hook, his USP in the cleaning instas. Melvin is the only geigh in the cleaning community. I also think that is why he has his menopausal mafia, because he is acting as such a stereotype, they are hoping he'll become their geigh best friend and braid their hair, drink prosecco with them and lip sync into a hairbrush. Just look at the carnage night 2019, everyone of his middle aged coven wanted to be on Melv's big night oot. That's why they all storied themselves pissing with laughter at how hilarious Melv is.
Don't worry about Dezza, he doesn't even notice half the time. The lights are clearly on but no one is home. The little rabbit that controls his brains thought processes, was showing him replays of great football matches just so he doesn't do a Raaaayyyynnnnnn and chuck himself out the window to get away from Maz.